index
int64 0
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| package
stringlengths 2
98
⌀ | name
stringlengths 1
76
| docstring
stringlengths 0
281k
⌀ | code
stringlengths 4
1.07M
⌀ | signature
stringlengths 2
42.8k
⌀ |
|---|---|---|---|---|---|
39,601 | wfgfw.wfgfw | DFAFilter | Filter Messages from keywords
Use DFA to keep algorithm perform constantly
解决了message变小写的问题
>>> f = DFAFilter()
>>> f.add("sexy")
>>> f.filter("hello sexy baby")
hello **** baby
| class DFAFilter:
"""Filter Messages from keywords
Use DFA to keep algorithm perform constantly
解决了message变小写的问题
>>> f = DFAFilter()
>>> f.add("sexy")
>>> f.filter("hello sexy baby")
hello **** baby
"""
def __init__(self):
self.keyword_chains = {}
self.delimit = '\x00'
def add(self, keyword):
if not isinstance(keyword, str):
keyword = keyword.decode()
keyword = keyword.lower()
chars = keyword.strip()
if not chars:
return
level = self.keyword_chains
for i in range(len(chars)):
if chars[i] in level:
level = level[chars[i]]
else:
if not isinstance(level, dict):
break
for j in range(i, len(chars)):
level[chars[j]] = {}
last_level, last_char = level, chars[j]
level = level[chars[j]]
last_level[last_char] = {self.delimit: 0}
break
if i == len(chars) - 1:
level[self.delimit] = 0
def parse(self, path):
with open(path, 'r') as f:
for keyword in f:
self.add(keyword.strip())
def filter(self, message, repl="*"):
if not isinstance(message, str):
message = message.decode()
lower_message = message.lower()
result_list = []
start = 0
dirty = False
while start < len(lower_message):
level = self.keyword_chains
step_ins = 0
for char in lower_message[start:]:
if char in level:
step_ins += 1
if self.delimit not in level[char]:
level = level[char]
else:
dirty = True
result_list.append(repl * step_ins)
start += step_ins - 1
break
else:
result_list.append(message[start])
break
else:
# modify by dantezhu 2013-12-24 12:15
# 没有到链的结尾，正常循环完了
result_list.append(message[start])
start += 1
return dirty, ''.join(result_list)
def filter_x(self, message, repl="*"):
"""
支持返回被过滤的关键字列表
:param message:
:param repl:
:return:
"""
if not isinstance(message, str):
message = message.decode()
lower_message = message.lower()
result_list = []
start = 0
dirty = False
dirty_keys = []
while start < len(lower_message):
level = self.keyword_chains
step_ins = 0
word = []
for char in lower_message[start:]:
if char in level:
step_ins += 1
word.append(char)
if self.delimit not in level[char]:
level = level[char]
else:
dirty = True
result_list.append(repl * step_ins)
start += step_ins - 1
break
else:
result_list.append(message[start])
break
else:
# modify by dantezhu 2013-12-24 12:15
# 没有到链的结尾，正常循环完了
result_list.append(message[start])
start += 1
if word:
dirty_keys.append(''.join(word))
return dirty, ''.join(result_list), dirty_keys
| () |
39,602 | wfgfw.wfgfw | __init__ | null | def __init__(self):
self.keyword_chains = {}
self.delimit = '\x00'
| (self) |
39,603 | wfgfw.wfgfw | add | null | def add(self, keyword):
if not isinstance(keyword, str):
keyword = keyword.decode()
keyword = keyword.lower()
chars = keyword.strip()
if not chars:
return
level = self.keyword_chains
for i in range(len(chars)):
if chars[i] in level:
level = level[chars[i]]
else:
if not isinstance(level, dict):
break
for j in range(i, len(chars)):
level[chars[j]] = {}
last_level, last_char = level, chars[j]
level = level[chars[j]]
last_level[last_char] = {self.delimit: 0}
break
if i == len(chars) - 1:
level[self.delimit] = 0
| (self, keyword) |
39,604 | wfgfw.wfgfw | filter | null | def filter(self, message, repl="*"):
if not isinstance(message, str):
message = message.decode()
lower_message = message.lower()
result_list = []
start = 0
dirty = False
while start < len(lower_message):
level = self.keyword_chains
step_ins = 0
for char in lower_message[start:]:
if char in level:
step_ins += 1
if self.delimit not in level[char]:
level = level[char]
else:
dirty = True
result_list.append(repl * step_ins)
start += step_ins - 1
break
else:
result_list.append(message[start])
break
else:
# modify by dantezhu 2013-12-24 12:15
# 没有到链的结尾，正常循环完了
result_list.append(message[start])
start += 1
return dirty, ''.join(result_list)
| (self, message, repl='*') |
39,605 | wfgfw.wfgfw | filter_x |
支持返回被过滤的关键字列表
:param message:
:param repl:
:return:
| def filter_x(self, message, repl="*"):
"""
支持返回被过滤的关键字列表
:param message:
:param repl:
:return:
"""
if not isinstance(message, str):
message = message.decode()
lower_message = message.lower()
result_list = []
start = 0
dirty = False
dirty_keys = []
while start < len(lower_message):
level = self.keyword_chains
step_ins = 0
word = []
for char in lower_message[start:]:
if char in level:
step_ins += 1
word.append(char)
if self.delimit not in level[char]:
level = level[char]
else:
dirty = True
result_list.append(repl * step_ins)
start += step_ins - 1
break
else:
result_list.append(message[start])
break
else:
# modify by dantezhu 2013-12-24 12:15
# 没有到链的结尾，正常循环完了
result_list.append(message[start])
start += 1
if word:
dirty_keys.append(''.join(word))
return dirty, ''.join(result_list), dirty_keys
| (self, message, repl='*') |
39,606 | wfgfw.wfgfw | parse | null | def parse(self, path):
with open(path, 'r') as f:
for keyword in f:
self.add(keyword.strip())
| (self, path) |
39,608 | zipfile36 | BadZipFile | null | class BadZipFile(Exception):
pass
| null |
39,610 | zipfile36 | LZMACompressor | null | class LZMACompressor:
def __init__(self):
self._comp = None
def _init(self):
props = lzma._encode_filter_properties({'id': lzma.FILTER_LZMA1})
self._comp = lzma.LZMACompressor(lzma.FORMAT_RAW, filters=[
lzma._decode_filter_properties(lzma.FILTER_LZMA1, props)
])
return struct.pack('<BBH', 9, 4, len(props)) + props
def compress(self, data):
if self._comp is None:
return self._init() + self._comp.compress(data)
return self._comp.compress(data)
def flush(self):
if self._comp is None:
return self._init() + self._comp.flush()
return self._comp.flush()
| () |
39,611 | zipfile36 | __init__ | null | def __init__(self):
self._comp = None
| (self) |
39,612 | zipfile36 | _init | null | def _init(self):
props = lzma._encode_filter_properties({'id': lzma.FILTER_LZMA1})
self._comp = lzma.LZMACompressor(lzma.FORMAT_RAW, filters=[
lzma._decode_filter_properties(lzma.FILTER_LZMA1, props)
])
return struct.pack('<BBH', 9, 4, len(props)) + props
| (self) |
39,613 | zipfile36 | compress | null | def compress(self, data):
if self._comp is None:
return self._init() + self._comp.compress(data)
return self._comp.compress(data)
| (self, data) |
39,614 | zipfile36 | flush | null | def flush(self):
if self._comp is None:
return self._init() + self._comp.flush()
return self._comp.flush()
| (self) |
39,615 | zipfile36 | LZMADecompressor | null | class LZMADecompressor:
def __init__(self):
self._decomp = None
self._unconsumed = b''
self.eof = False
def decompress(self, data):
if self._decomp is None:
self._unconsumed += data
if len(self._unconsumed) <= 4:
return b''
psize, = struct.unpack('<H', self._unconsumed[2:4])
if len(self._unconsumed) <= 4 + psize:
return b''
self._decomp = lzma.LZMADecompressor(lzma.FORMAT_RAW, filters=[
lzma._decode_filter_properties(lzma.FILTER_LZMA1,
self._unconsumed[4:4 + psize])
])
data = self._unconsumed[4 + psize:]
del self._unconsumed
result = self._decomp.decompress(data)
self.eof = self._decomp.eof
return result
| () |
39,616 | zipfile36 | __init__ | null | def __init__(self):
self._decomp = None
self._unconsumed = b''
self.eof = False
| (self) |
39,617 | zipfile36 | decompress | null | def decompress(self, data):
if self._decomp is None:
self._unconsumed += data
if len(self._unconsumed) <= 4:
return b''
psize, = struct.unpack('<H', self._unconsumed[2:4])
if len(self._unconsumed) <= 4 + psize:
return b''
self._decomp = lzma.LZMADecompressor(lzma.FORMAT_RAW, filters=[
lzma._decode_filter_properties(lzma.FILTER_LZMA1,
self._unconsumed[4:4 + psize])
])
data = self._unconsumed[4 + psize:]
del self._unconsumed
result = self._decomp.decompress(data)
self.eof = self._decomp.eof
return result
| (self, data) |
39,618 | zipfile36 | LargeZipFile |
Raised when writing a zipfile, the zipfile requires ZIP64 extensions
and those extensions are disabled.
| class LargeZipFile(Exception):
"""
Raised when writing a zipfile, the zipfile requires ZIP64 extensions
and those extensions are disabled.
"""
| null |
39,619 | zipfile36 | PyZipFile | Class to create ZIP archives with Python library files and packages. | class PyZipFile(ZipFile):
"""Class to create ZIP archives with Python library files and packages."""
def __init__(self, file, mode="r", compression=ZIP_STORED,
allowZip64=True, optimize=-1):
ZipFile.__init__(self, file, mode=mode, compression=compression,
allowZip64=allowZip64)
self._optimize = optimize
def writepy(self, pathname, basename="", filterfunc=None):
"""Add all files from "pathname" to the ZIP archive.
If pathname is a package directory, search the directory and
all package subdirectories recursively for all *.py and enter
the modules into the archive. If pathname is a plain
directory, listdir *.py and enter all modules. Else, pathname
must be a Python *.py file and the module will be put into the
archive. Added modules are always module.pyc.
This method will compile the module.py into module.pyc if
necessary.
If filterfunc(pathname) is given, it is called with every argument.
When it is False, the file or directory is skipped.
"""
if filterfunc and not filterfunc(pathname):
if self.debug:
label = 'path' if os.path.isdir(pathname) else 'file'
print('%s %r skipped by filterfunc' % (label, pathname))
return
dir, name = os.path.split(pathname)
if os.path.isdir(pathname):
initname = os.path.join(pathname, "__init__.py")
if os.path.isfile(initname):
# This is a package directory, add it
if basename:
basename = "%s/%s" % (basename, name)
else:
basename = name
if self.debug:
print("Adding package in", pathname, "as", basename)
fname, arcname = self._get_codename(initname[0:-3], basename)
if self.debug:
print("Adding", arcname)
self.write(fname, arcname)
dirlist = os.listdir(pathname)
dirlist.remove("__init__.py")
# Add all *.py files and package subdirectories
for filename in dirlist:
path = os.path.join(pathname, filename)
root, ext = os.path.splitext(filename)
if os.path.isdir(path):
if os.path.isfile(os.path.join(path, "__init__.py")):
# This is a package directory, add it
self.writepy(path, basename,
filterfunc=filterfunc) # Recursive call
elif ext == ".py":
if filterfunc and not filterfunc(path):
if self.debug:
print('file %r skipped by filterfunc' % path)
continue
fname, arcname = self._get_codename(path[0:-3],
basename)
if self.debug:
print("Adding", arcname)
self.write(fname, arcname)
else:
# This is NOT a package directory, add its files at top level
if self.debug:
print("Adding files from directory", pathname)
for filename in os.listdir(pathname):
path = os.path.join(pathname, filename)
root, ext = os.path.splitext(filename)
if ext == ".py":
if filterfunc and not filterfunc(path):
if self.debug:
print('file %r skipped by filterfunc' % path)
continue
fname, arcname = self._get_codename(path[0:-3],
basename)
if self.debug:
print("Adding", arcname)
self.write(fname, arcname)
else:
if pathname[-3:] != ".py":
raise RuntimeError(
'Files added with writepy() must end with ".py"')
fname, arcname = self._get_codename(pathname[0:-3], basename)
if self.debug:
print("Adding file", arcname)
self.write(fname, arcname)
def _get_codename(self, pathname, basename):
"""Return (filename, archivename) for the path.
Given a module name path, return the correct file path and
archive name, compiling if necessary. For example, given
/python/lib/string, return (/python/lib/string.pyc, string).
"""
def _compile(file, optimize=-1):
import py_compile
if self.debug:
print("Compiling", file)
try:
py_compile.compile(file, doraise=True, optimize=optimize)
except py_compile.PyCompileError as err:
print(err.msg)
return False
return True
file_py = pathname + ".py"
file_pyc = pathname + ".pyc"
if sys.version_info >= (3, 5):
pycache_opt0 = importlib.util.cache_from_source(file_py, optimization='')
pycache_opt1 = importlib.util.cache_from_source(file_py, optimization=1)
pycache_opt2 = importlib.util.cache_from_source(file_py, optimization=2)
else:
pycache_opt0 = importlib.util.cache_from_source(file_py,
debug_override=True)
pycache_opt1 = importlib.util.cache_from_source(file_py,
debug_override=False)
pycache_opt2 = None
if self._optimize == -1:
# legacy mode: use whatever file is present
if (os.path.isfile(file_pyc) and
os.stat(file_pyc).st_mtime >= os.stat(file_py).st_mtime):
# Use .pyc file.
arcname = fname = file_pyc
elif (os.path.isfile(pycache_opt0) and
os.stat(pycache_opt0).st_mtime >= os.stat(file_py).st_mtime):
# Use the __pycache__/*.pyc file, but write it to the legacy pyc
# file name in the archive.
fname = pycache_opt0
arcname = file_pyc
elif (os.path.isfile(pycache_opt1) and
os.stat(pycache_opt1).st_mtime >= os.stat(file_py).st_mtime):
# Use the __pycache__/*.pyc file, but write it to the legacy pyc
# file name in the archive.
fname = pycache_opt1
arcname = file_pyc
elif pycache_opt2 and (os.path.isfile(pycache_opt2) and
os.stat(pycache_opt2).st_mtime >= os.stat(file_py).st_mtime):
# Use the __pycache__/*.pyc file, but write it to the legacy pyc
# file name in the archive.
fname = pycache_opt2
arcname = file_pyc
else:
# Compile py into PEP 3147 pyc file.
if _compile(file_py):
if sys.flags.optimize == 0:
fname = pycache_opt0
elif (sys.flags.optimize == 1) or not pycache_opt2:
fname = pycache_opt1
else:
fname = pycache_opt2
arcname = file_pyc
else:
fname = arcname = file_py
else:
# new mode: use given optimization level
if self._optimize == 0:
fname = pycache_opt0
arcname = file_pyc
else:
arcname = file_pyc
if self._optimize == 1:
fname = pycache_opt1
elif self._optimize == 2:
fname = pycache_opt2 or pycache_opt1
else:
msg = "invalid value for 'optimize': {!r}".format(self._optimize)
raise ValueError(msg)
if not (os.path.isfile(fname) and
os.stat(fname).st_mtime >= os.stat(file_py).st_mtime):
if not _compile(file_py, optimize=self._optimize):
fname = arcname = file_py
archivename = os.path.split(arcname)[1]
if basename:
archivename = "%s/%s" % (basename, archivename)
return (fname, archivename)
| (file, mode='r', compression=0, allowZip64=True, optimize=-1) |
39,620 | zipfile36 | _RealGetContents | Read in the table of contents for the ZIP file. | def _RealGetContents(self):
"""Read in the table of contents for the ZIP file."""
fp = self.fp
try:
endrec = _EndRecData(fp)
except OSError:
raise BadZipFile("File is not a zip file")
if not endrec:
raise BadZipFile("File is not a zip file")
if self.debug > 1:
print(endrec)
size_cd = endrec[_ECD_SIZE] # bytes in central directory
offset_cd = endrec[_ECD_OFFSET] # offset of central directory
self._comment = endrec[_ECD_COMMENT] # archive comment
# self._start_disk: Position of the start of ZIP archive
# It is zero, unless ZIP was concatenated to another file
self._start_disk = endrec[_ECD_LOCATION] - size_cd - offset_cd
if endrec[_ECD_SIGNATURE] == stringEndArchive64:
# If Zip64 extension structures are present, account for them
self._start_disk -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
if self.debug > 2:
inferred = self._start_disk + offset_cd
print("given, inferred, offset", offset_cd, inferred, self._start_disk)
# self.start_dir: Position of start of central directory
self.start_dir = offset_cd + self._start_disk
fp.seek(self.start_dir, 0)
data = fp.read(size_cd)
fp = io.BytesIO(data)
total = 0
while total < size_cd:
centdir = fp.read(sizeCentralDir)
if len(centdir) != sizeCentralDir:
raise BadZipFile("Truncated central directory")
centdir = struct.unpack(structCentralDir, centdir)
if centdir[_CD_SIGNATURE] != stringCentralDir:
raise BadZipFile("Bad magic number for central directory")
if self.debug > 2:
print(centdir)
filename = fp.read(centdir[_CD_FILENAME_LENGTH])
flags = centdir[5]
if flags & 0x800:
# UTF-8 file names extension
filename = filename.decode('utf-8')
else:
# Historical ZIP filename encoding
filename = filename.decode('cp437')
# Create ZipInfo instance to store file information
x = ZipInfo(filename)
x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
(x.create_version, x.create_system, x.extract_version, x.reserved,
x.flag_bits, x.compress_type, t, d,
x.CRC, x.compress_size, x.file_size) = centdir[1:12]
if x.extract_version > MAX_EXTRACT_VERSION:
raise NotImplementedError("zip file version %.1f" %
(x.extract_version / 10))
x.volume, x.internal_attr, x.external_attr = centdir[15:18]
# Convert date/time code to (year, month, day, hour, min, sec)
x._raw_time = t
x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
x._decodeExtra()
x.header_offset = x.header_offset + self._start_disk
self.filelist.append(x)
self.NameToInfo[x.filename] = x
# update total bytes read from central directory
total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
+ centdir[_CD_EXTRA_FIELD_LENGTH]
+ centdir[_CD_COMMENT_LENGTH])
if self.debug > 2:
print("total", total)
| (self) |
39,621 | zipfile36 | __del__ | Call the "close()" method in case the user forgot. | def __del__(self):
"""Call the "close()" method in case the user forgot."""
self.close()
| (self) |
39,624 | zipfile36 | __init__ | null | def __init__(self, file, mode="r", compression=ZIP_STORED,
allowZip64=True, optimize=-1):
ZipFile.__init__(self, file, mode=mode, compression=compression,
allowZip64=allowZip64)
self._optimize = optimize
| (self, file, mode='r', compression=0, allowZip64=True, optimize=-1) |
39,625 | zipfile36 | __repr__ | null | def __repr__(self):
result = ['<%s.%s' % (self.__class__.__module__,
self.__class__.__qualname__)]
if self.fp is not None:
if self._filePassed:
result.append(' file=%r' % self.fp)
elif self.filename is not None:
result.append(' filename=%r' % self.filename)
result.append(' mode=%r' % self.mode)
else:
result.append(' [closed]')
result.append('>')
return ''.join(result)
| (self) |
39,626 | zipfile36 | _extract_member | Extract the ZipInfo object 'member' to a physical
file on the path targetpath.
| def _extract_member(self, member, targetpath, pwd):
"""Extract the ZipInfo object 'member' to a physical
file on the path targetpath.
"""
# build the destination pathname, replacing
# forward slashes to platform specific separators.
arcname = member.filename.replace('/', os.path.sep)
if os.path.altsep:
arcname = arcname.replace(os.path.altsep, os.path.sep)
# interpret absolute pathname as relative, remove drive letter or
# UNC path, redundant separators, "." and ".." components.
arcname = os.path.splitdrive(arcname)[1]
invalid_path_parts = ('', os.path.curdir, os.path.pardir)
arcname = os.path.sep.join(x for x in arcname.split(os.path.sep)
if x not in invalid_path_parts)
if os.path.sep == '\\':
# filter illegal characters on Windows
arcname = self._sanitize_windows_name(arcname, os.path.sep)
targetpath = os.path.join(targetpath, arcname)
targetpath = os.path.normpath(targetpath)
# Create all upper directories if necessary.
upperdirs = os.path.dirname(targetpath)
if upperdirs and not os.path.exists(upperdirs):
os.makedirs(upperdirs)
if member.is_dir():
if not os.path.isdir(targetpath):
os.mkdir(targetpath)
return targetpath
with self.open(member, pwd=pwd) as source, \
open(targetpath, "wb") as target:
shutil.copyfileobj(source, target)
return targetpath
| (self, member, targetpath, pwd) |
39,627 | zipfile36 | _fpclose | null | def _fpclose(self, fp):
assert self._fileRefCnt > 0
self._fileRefCnt -= 1
if not self._fileRefCnt and not self._filePassed:
fp.close()
| (self, fp) |
39,628 | zipfile36 | _get_codename | Return (filename, archivename) for the path.
Given a module name path, return the correct file path and
archive name, compiling if necessary. For example, given
/python/lib/string, return (/python/lib/string.pyc, string).
| def _get_codename(self, pathname, basename):
"""Return (filename, archivename) for the path.
Given a module name path, return the correct file path and
archive name, compiling if necessary. For example, given
/python/lib/string, return (/python/lib/string.pyc, string).
"""
def _compile(file, optimize=-1):
import py_compile
if self.debug:
print("Compiling", file)
try:
py_compile.compile(file, doraise=True, optimize=optimize)
except py_compile.PyCompileError as err:
print(err.msg)
return False
return True
file_py = pathname + ".py"
file_pyc = pathname + ".pyc"
if sys.version_info >= (3, 5):
pycache_opt0 = importlib.util.cache_from_source(file_py, optimization='')
pycache_opt1 = importlib.util.cache_from_source(file_py, optimization=1)
pycache_opt2 = importlib.util.cache_from_source(file_py, optimization=2)
else:
pycache_opt0 = importlib.util.cache_from_source(file_py,
debug_override=True)
pycache_opt1 = importlib.util.cache_from_source(file_py,
debug_override=False)
pycache_opt2 = None
if self._optimize == -1:
# legacy mode: use whatever file is present
if (os.path.isfile(file_pyc) and
os.stat(file_pyc).st_mtime >= os.stat(file_py).st_mtime):
# Use .pyc file.
arcname = fname = file_pyc
elif (os.path.isfile(pycache_opt0) and
os.stat(pycache_opt0).st_mtime >= os.stat(file_py).st_mtime):
# Use the __pycache__/*.pyc file, but write it to the legacy pyc
# file name in the archive.
fname = pycache_opt0
arcname = file_pyc
elif (os.path.isfile(pycache_opt1) and
os.stat(pycache_opt1).st_mtime >= os.stat(file_py).st_mtime):
# Use the __pycache__/*.pyc file, but write it to the legacy pyc
# file name in the archive.
fname = pycache_opt1
arcname = file_pyc
elif pycache_opt2 and (os.path.isfile(pycache_opt2) and
os.stat(pycache_opt2).st_mtime >= os.stat(file_py).st_mtime):
# Use the __pycache__/*.pyc file, but write it to the legacy pyc
# file name in the archive.
fname = pycache_opt2
arcname = file_pyc
else:
# Compile py into PEP 3147 pyc file.
if _compile(file_py):
if sys.flags.optimize == 0:
fname = pycache_opt0
elif (sys.flags.optimize == 1) or not pycache_opt2:
fname = pycache_opt1
else:
fname = pycache_opt2
arcname = file_pyc
else:
fname = arcname = file_py
else:
# new mode: use given optimization level
if self._optimize == 0:
fname = pycache_opt0
arcname = file_pyc
else:
arcname = file_pyc
if self._optimize == 1:
fname = pycache_opt1
elif self._optimize == 2:
fname = pycache_opt2 or pycache_opt1
else:
msg = "invalid value for 'optimize': {!r}".format(self._optimize)
raise ValueError(msg)
if not (os.path.isfile(fname) and
os.stat(fname).st_mtime >= os.stat(file_py).st_mtime):
if not _compile(file_py, optimize=self._optimize):
fname = arcname = file_py
archivename = os.path.split(arcname)[1]
if basename:
archivename = "%s/%s" % (basename, archivename)
return (fname, archivename)
| (self, pathname, basename) |
39,629 | zipfile36 | _open_to_write | null | def _open_to_write(self, zinfo, force_zip64=False):
if force_zip64 and not self._allowZip64:
raise ValueError(
"force_zip64 is True, but allowZip64 was False when opening "
"the ZIP file."
)
if self._writing:
raise ValueError("Can't write to the ZIP file while there is "
"another write handle open on it. "
"Close the first handle before opening another.")
# Sizes and CRC are overwritten with correct data after processing the file
if not hasattr(zinfo, 'file_size'):
zinfo.file_size = 0
zinfo.compress_size = 0
zinfo.CRC = 0
zinfo.flag_bits = 0x00
if zinfo.compress_type == ZIP_LZMA:
# Compressed data includes an end-of-stream (EOS) marker
zinfo.flag_bits |= 0x02
if not self._seekable:
zinfo.flag_bits |= 0x08
if not zinfo.external_attr:
zinfo.external_attr = 0o600 << 16 # permissions: ?rw-------
# Compressed size can be larger than uncompressed size
zip64 = self._allowZip64 and \
(force_zip64 or zinfo.file_size * 1.05 > ZIP64_LIMIT)
if self._seekable:
self.fp.seek(self.start_dir)
zinfo.header_offset = self.fp.tell()
self._writecheck(zinfo)
self._didModify = True
self.fp.write(zinfo.FileHeader(zip64))
self._writing = True
return _ZipWriteFile(self, zinfo, zip64)
| (self, zinfo, force_zip64=False) |
39,630 | zipfile36 | _write_end_record | null | def _write_end_record(self):
for zinfo in self.filelist: # write central directory
dt = zinfo.date_time
dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
extra = []
if zinfo.file_size > ZIP64_LIMIT \
or zinfo.compress_size > ZIP64_LIMIT:
extra.append(zinfo.file_size)
extra.append(zinfo.compress_size)
file_size = 0xffffffff
compress_size = 0xffffffff
else:
file_size = zinfo.file_size
compress_size = zinfo.compress_size
header_offset = zinfo.header_offset - self._start_disk
if header_offset > ZIP64_LIMIT:
extra.append(header_offset)
header_offset = 0xffffffff
extra_data = zinfo.extra
min_version = 0
if extra:
# Append a ZIP64 field to the extra's
extra_data = struct.pack(
'<HH' + 'Q'*len(extra),
1, 8*len(extra), *extra) + extra_data
min_version = ZIP64_VERSION
if zinfo.compress_type == ZIP_BZIP2:
min_version = max(BZIP2_VERSION, min_version)
elif zinfo.compress_type == ZIP_LZMA:
min_version = max(LZMA_VERSION, min_version)
extract_version = max(min_version, zinfo.extract_version)
create_version = max(min_version, zinfo.create_version)
try:
filename, flag_bits = zinfo._encodeFilenameFlags()
centdir = struct.pack(structCentralDir,
stringCentralDir, create_version,
zinfo.create_system, extract_version, zinfo.reserved,
flag_bits, zinfo.compress_type, dostime, dosdate,
zinfo.CRC, compress_size, file_size,
len(filename), len(extra_data), len(zinfo.comment),
0, zinfo.internal_attr, zinfo.external_attr,
header_offset)
except DeprecationWarning:
print((structCentralDir, stringCentralDir, create_version,
zinfo.create_system, extract_version, zinfo.reserved,
zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
zinfo.CRC, compress_size, file_size,
len(zinfo.filename), len(extra_data), len(zinfo.comment),
0, zinfo.internal_attr, zinfo.external_attr,
header_offset), file=sys.stderr)
raise
self.fp.write(centdir)
self.fp.write(filename)
self.fp.write(extra_data)
self.fp.write(zinfo.comment)
pos2 = self.fp.tell()
# Write end-of-zip-archive record
centDirCount = len(self.filelist)
centDirSize = pos2 - self.start_dir
centDirOffset = self.start_dir - self._start_disk
requires_zip64 = None
if centDirCount > ZIP_FILECOUNT_LIMIT:
requires_zip64 = "Files count"
elif centDirOffset > ZIP64_LIMIT:
requires_zip64 = "Central directory offset"
elif centDirSize > ZIP64_LIMIT:
requires_zip64 = "Central directory size"
if requires_zip64:
# Need to write the ZIP64 end-of-archive records
if not self._allowZip64:
raise LargeZipFile(requires_zip64 +
" would require ZIP64 extensions")
zip64endrec = struct.pack(
structEndArchive64, stringEndArchive64,
44, 45, 45, 0, 0, centDirCount, centDirCount,
centDirSize, centDirOffset)
self.fp.write(zip64endrec)
zip64locrec = struct.pack(
structEndArchive64Locator,
stringEndArchive64Locator, 0, pos2, 1)
self.fp.write(zip64locrec)
centDirCount = min(centDirCount, 0xFFFF)
centDirSize = min(centDirSize, 0xFFFFFFFF)
centDirOffset = min(centDirOffset, 0xFFFFFFFF)
endrec = struct.pack(structEndArchive, stringEndArchive,
0, 0, centDirCount, centDirCount,
centDirSize, centDirOffset, len(self._comment))
self.fp.write(endrec)
self.fp.write(self._comment)
self.fp.flush()
| (self) |
39,631 | zipfile36 | _writecheck | Check for errors before writing a file to the archive. | def _writecheck(self, zinfo):
"""Check for errors before writing a file to the archive."""
if zinfo.filename in self.NameToInfo:
import warnings
warnings.warn('Duplicate name: %r' % zinfo.filename, stacklevel=3)
if self.mode not in ('w', 'x', 'a'):
raise ValueError("write() requires mode 'w', 'x', or 'a'")
if not self.fp:
raise ValueError(
"Attempt to write ZIP archive that was already closed")
_check_compression(zinfo.compress_type)
if not self._allowZip64:
requires_zip64 = None
if len(self.filelist) >= ZIP_FILECOUNT_LIMIT:
requires_zip64 = "Files count"
elif zinfo.file_size > ZIP64_LIMIT:
requires_zip64 = "Filesize"
elif zinfo.header_offset > ZIP64_LIMIT:
requires_zip64 = "Zipfile size"
if requires_zip64:
raise LargeZipFile(requires_zip64 +
" would require ZIP64 extensions")
| (self, zinfo) |
39,632 | zipfile36 | close | Close the file, and for mode 'w', 'x' and 'a' write the ending
records. | def close(self):
"""Close the file, and for mode 'w', 'x' and 'a' write the ending
records."""
if self.fp is None:
return
if self._writing:
raise ValueError("Can't close the ZIP file while there is "
"an open writing handle on it. "
"Close the writing handle before closing the zip.")
try:
if self.mode in ('w', 'x', 'a') and self._didModify: # write ending records
with self._lock:
if self._seekable:
self.fp.seek(self.start_dir)
self._write_end_record()
finally:
fp = self.fp
self.fp = None
self._fpclose(fp)
| (self) |
39,633 | zipfile36 | extract | Extract a member from the archive to the current working directory,
using its full name. Its file information is extracted as accurately
as possible. `member' may be a filename or a ZipInfo object. You can
specify a different directory using `path'.
| def extract(self, member, path=None, pwd=None):
"""Extract a member from the archive to the current working directory,
using its full name. Its file information is extracted as accurately
as possible. `member' may be a filename or a ZipInfo object. You can
specify a different directory using `path'.
"""
if not isinstance(member, ZipInfo):
member = self.getinfo(member)
if path is None:
path = os.getcwd()
return self._extract_member(member, path, pwd)
| (self, member, path=None, pwd=None) |
39,634 | zipfile36 | extractall | Extract all members from the archive to the current working
directory. `path' specifies a different directory to extract to.
`members' is optional and must be a subset of the list returned
by namelist().
| def extractall(self, path=None, members=None, pwd=None):
"""Extract all members from the archive to the current working
directory. `path' specifies a different directory to extract to.
`members' is optional and must be a subset of the list returned
by namelist().
"""
if members is None:
members = self.namelist()
for zipinfo in members:
self.extract(zipinfo, path, pwd)
| (self, path=None, members=None, pwd=None) |
39,635 | zipfile36 | getinfo | Return the instance of ZipInfo given 'name'. | def getinfo(self, name):
"""Return the instance of ZipInfo given 'name'."""
info = self.NameToInfo.get(name)
if info is None:
raise KeyError(
'There is no item named %r in the archive' % name)
return info
| (self, name) |
39,636 | zipfile36 | infolist | Return a list of class ZipInfo instances for files in the
archive. | def infolist(self):
"""Return a list of class ZipInfo instances for files in the
archive."""
return self.filelist
| (self) |
39,637 | zipfile36 | namelist | Return a list of file names in the archive. | def namelist(self):
"""Return a list of file names in the archive."""
return [data.filename for data in self.filelist]
| (self) |
39,638 | zipfile36 | open | Return file-like object for 'name'.
name is a string for the file name within the ZIP file, or a ZipInfo
object.
mode should be 'r' to read a file already in the ZIP file, or 'w' to
write to a file newly added to the archive.
pwd is the password to decrypt files (only used for reading).
When writing, if the file size is not known in advance but may exceed
2 GiB, pass force_zip64 to use the ZIP64 format, which can handle large
files. If the size is known in advance, it is best to pass a ZipInfo
instance for name, with zinfo.file_size set.
| def open(self, name, mode="r", pwd=None, *, force_zip64=False):
"""Return file-like object for 'name'.
name is a string for the file name within the ZIP file, or a ZipInfo
object.
mode should be 'r' to read a file already in the ZIP file, or 'w' to
write to a file newly added to the archive.
pwd is the password to decrypt files (only used for reading).
When writing, if the file size is not known in advance but may exceed
2 GiB, pass force_zip64 to use the ZIP64 format, which can handle large
files. If the size is known in advance, it is best to pass a ZipInfo
instance for name, with zinfo.file_size set.
"""
if mode not in {"r", "w"}:
raise ValueError('open() requires mode "r" or "w"')
if pwd and not isinstance(pwd, bytes):
raise TypeError("pwd: expected bytes, got %s" % type(pwd).__name__)
if pwd and (mode == "w"):
raise ValueError("pwd is only supported for reading files")
if not self.fp:
raise ValueError(
"Attempt to use ZIP archive that was already closed")
# Make sure we have an info object
if isinstance(name, ZipInfo):
# 'name' is already an info object
zinfo = name
elif mode == 'w':
zinfo = ZipInfo(name)
zinfo.compress_type = self.compression
else:
# Get info object for name
zinfo = self.getinfo(name)
if mode == 'w':
return self._open_to_write(zinfo, force_zip64=force_zip64)
if self._writing:
raise ValueError("Can't read from the ZIP file while there "
"is an open writing handle on it. "
"Close the writing handle before trying to read.")
# Open for reading:
self._fileRefCnt += 1
zef_file = _SharedFile(self.fp, zinfo.header_offset,
self._fpclose, self._lock, lambda: self._writing)
try:
# Skip the file header:
fheader = zef_file.read(sizeFileHeader)
if len(fheader) != sizeFileHeader:
raise BadZipFile("Truncated file header")
fheader = struct.unpack(structFileHeader, fheader)
if fheader[_FH_SIGNATURE] != stringFileHeader:
raise BadZipFile("Bad magic number for file header")
fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
if fheader[_FH_EXTRA_FIELD_LENGTH]:
zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
if zinfo.flag_bits & 0x20:
# Zip 2.7: compressed patched data
raise NotImplementedError("compressed patched data (flag bit 5)")
if zinfo.flag_bits & 0x40:
# strong encryption
raise NotImplementedError("strong encryption (flag bit 6)")
if zinfo.flag_bits & 0x800:
# UTF-8 filename
fname_str = fname.decode("utf-8")
else:
fname_str = fname.decode("cp437")
if fname_str != zinfo.orig_filename:
raise BadZipFile(
'File name in directory %r and header %r differ.'
% (zinfo.orig_filename, fname))
# check for encrypted flag & handle password
is_encrypted = zinfo.flag_bits & 0x1
zd = None
if is_encrypted:
if not pwd:
pwd = self.pwd
if not pwd:
raise RuntimeError("File %r is encrypted, password "
"required for extraction" % name)
zd = _ZipDecrypter(pwd)
# The first 12 bytes in the cypher stream is an encryption header
# used to strengthen the algorithm. The first 11 bytes are
# completely random, while the 12th contains the MSB of the CRC,
# or the MSB of the file time depending on the header type
# and is used to check the correctness of the password.
header = zef_file.read(12)
h = list(map(zd, header[0:12]))
if zinfo.flag_bits & 0x8:
# compare against the file type from extended local headers
check_byte = (zinfo._raw_time >> 8) & 0xff
else:
# compare against the CRC otherwise
check_byte = (zinfo.CRC >> 24) & 0xff
if h[11] != check_byte:
raise RuntimeError("Bad password for file %r" % name)
return ZipExtFile(zef_file, mode, zinfo, zd, True)
except:
zef_file.close()
raise
| (self, name, mode='r', pwd=None, *, force_zip64=False) |
39,639 | zipfile36 | printdir | Print a table of contents for the zip file. | def printdir(self, file=None):
"""Print a table of contents for the zip file."""
print("%-46s %19s %12s" % ("File Name", "Modified ", "Size"),
file=file)
for zinfo in self.filelist:
date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
print("%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size),
file=file)
| (self, file=None) |
39,640 | zipfile36 | read | Return file bytes (as a string) for name. | def read(self, name, pwd=None):
"""Return file bytes (as a string) for name."""
with self.open(name, "r", pwd) as fp:
return fp.read()
| (self, name, pwd=None) |
39,641 | zipfile36 | setpassword | Set default password for encrypted files. | def setpassword(self, pwd):
"""Set default password for encrypted files."""
if pwd and not isinstance(pwd, bytes):
raise TypeError("pwd: expected bytes, got %s" % type(pwd).__name__)
if pwd:
self.pwd = pwd
else:
self.pwd = None
| (self, pwd) |
39,642 | zipfile36 | testzip | Read all the files and check the CRC. | def testzip(self):
"""Read all the files and check the CRC."""
chunk_size = 2 ** 20
for zinfo in self.filelist:
try:
# Read by chunks, to avoid an OverflowError or a
# MemoryError with very large embedded files.
with self.open(zinfo.filename, "r") as f:
while f.read(chunk_size): # Check CRC-32
pass
except BadZipFile:
return zinfo.filename
| (self) |
39,643 | zipfile36 | write | Put the bytes from filename into the archive under the name
arcname. | def write(self, filename, arcname=None, compress_type=None):
"""Put the bytes from filename into the archive under the name
arcname."""
if not self.fp:
raise ValueError(
"Attempt to write to ZIP archive that was already closed")
if self._writing:
raise ValueError(
"Can't write to ZIP archive while an open writing handle exists"
)
zinfo = ZipInfo.from_file(filename, arcname)
if zinfo.is_dir():
zinfo.compress_size = 0
zinfo.CRC = 0
else:
if compress_type is not None:
zinfo.compress_type = compress_type
else:
zinfo.compress_type = self.compression
if zinfo.is_dir():
with self._lock:
if self._seekable:
self.fp.seek(self.start_dir)
zinfo.header_offset = self.fp.tell() # Start of header bytes
if zinfo.compress_type == ZIP_LZMA:
# Compressed data includes an end-of-stream (EOS) marker
zinfo.flag_bits |= 0x02
self._writecheck(zinfo)
self._didModify = True
self.filelist.append(zinfo)
self.NameToInfo[zinfo.filename] = zinfo
self.fp.write(zinfo.FileHeader(False))
self.start_dir = self.fp.tell()
else:
with open(filename, "rb") as src, self.open(zinfo, 'w') as dest:
shutil.copyfileobj(src, dest, 1024*8)
| (self, filename, arcname=None, compress_type=None) |
39,644 | zipfile36 | writepy | Add all files from "pathname" to the ZIP archive.
If pathname is a package directory, search the directory and
all package subdirectories recursively for all *.py and enter
the modules into the archive. If pathname is a plain
directory, listdir *.py and enter all modules. Else, pathname
must be a Python *.py file and the module will be put into the
archive. Added modules are always module.pyc.
This method will compile the module.py into module.pyc if
necessary.
If filterfunc(pathname) is given, it is called with every argument.
When it is False, the file or directory is skipped.
| def writepy(self, pathname, basename="", filterfunc=None):
"""Add all files from "pathname" to the ZIP archive.
If pathname is a package directory, search the directory and
all package subdirectories recursively for all *.py and enter
the modules into the archive. If pathname is a plain
directory, listdir *.py and enter all modules. Else, pathname
must be a Python *.py file and the module will be put into the
archive. Added modules are always module.pyc.
This method will compile the module.py into module.pyc if
necessary.
If filterfunc(pathname) is given, it is called with every argument.
When it is False, the file or directory is skipped.
"""
if filterfunc and not filterfunc(pathname):
if self.debug:
label = 'path' if os.path.isdir(pathname) else 'file'
print('%s %r skipped by filterfunc' % (label, pathname))
return
dir, name = os.path.split(pathname)
if os.path.isdir(pathname):
initname = os.path.join(pathname, "__init__.py")
if os.path.isfile(initname):
# This is a package directory, add it
if basename:
basename = "%s/%s" % (basename, name)
else:
basename = name
if self.debug:
print("Adding package in", pathname, "as", basename)
fname, arcname = self._get_codename(initname[0:-3], basename)
if self.debug:
print("Adding", arcname)
self.write(fname, arcname)
dirlist = os.listdir(pathname)
dirlist.remove("__init__.py")
# Add all *.py files and package subdirectories
for filename in dirlist:
path = os.path.join(pathname, filename)
root, ext = os.path.splitext(filename)
if os.path.isdir(path):
if os.path.isfile(os.path.join(path, "__init__.py")):
# This is a package directory, add it
self.writepy(path, basename,
filterfunc=filterfunc) # Recursive call
elif ext == ".py":
if filterfunc and not filterfunc(path):
if self.debug:
print('file %r skipped by filterfunc' % path)
continue
fname, arcname = self._get_codename(path[0:-3],
basename)
if self.debug:
print("Adding", arcname)
self.write(fname, arcname)
else:
# This is NOT a package directory, add its files at top level
if self.debug:
print("Adding files from directory", pathname)
for filename in os.listdir(pathname):
path = os.path.join(pathname, filename)
root, ext = os.path.splitext(filename)
if ext == ".py":
if filterfunc and not filterfunc(path):
if self.debug:
print('file %r skipped by filterfunc' % path)
continue
fname, arcname = self._get_codename(path[0:-3],
basename)
if self.debug:
print("Adding", arcname)
self.write(fname, arcname)
else:
if pathname[-3:] != ".py":
raise RuntimeError(
'Files added with writepy() must end with ".py"')
fname, arcname = self._get_codename(pathname[0:-3], basename)
if self.debug:
print("Adding file", arcname)
self.write(fname, arcname)
| (self, pathname, basename='', filterfunc=None) |
39,645 | zipfile36 | writestr | Write a file into the archive. The contents is 'data', which
may be either a 'str' or a 'bytes' instance; if it is a 'str',
it is encoded as UTF-8 first.
'zinfo_or_arcname' is either a ZipInfo instance or
the name of the file in the archive. | def writestr(self, zinfo_or_arcname, data, compress_type=None):
"""Write a file into the archive. The contents is 'data', which
may be either a 'str' or a 'bytes' instance; if it is a 'str',
it is encoded as UTF-8 first.
'zinfo_or_arcname' is either a ZipInfo instance or
the name of the file in the archive."""
if isinstance(data, str):
data = data.encode("utf-8")
if not isinstance(zinfo_or_arcname, ZipInfo):
zinfo = ZipInfo(filename=zinfo_or_arcname,
date_time=time.localtime(time.time())[:6])
zinfo.compress_type = self.compression
if zinfo.filename[-1] == '/':
zinfo.external_attr = 0o40775 << 16 # drwxrwxr-x
zinfo.external_attr |= 0x10 # MS-DOS directory flag
else:
zinfo.external_attr = 0o600 << 16 # ?rw-------
else:
zinfo = zinfo_or_arcname
if not self.fp:
raise ValueError(
"Attempt to write to ZIP archive that was already closed")
if self._writing:
raise ValueError(
"Can't write to ZIP archive while an open writing handle exists."
)
if compress_type is not None:
zinfo.compress_type = compress_type
zinfo.file_size = len(data) # Uncompressed size
with self._lock:
with self.open(zinfo, mode='w') as dest:
dest.write(data)
| (self, zinfo_or_arcname, data, compress_type=None) |
39,646 | zipfile36 | ZipExtFile | File-like object for reading an archive member.
Is returned by ZipFile.open().
| class ZipExtFile(io.BufferedIOBase):
"""File-like object for reading an archive member.
Is returned by ZipFile.open().
"""
# Max size supported by decompressor.
MAX_N = 1 << 31 - 1
# Read from compressed files in 4k blocks.
MIN_READ_SIZE = 4096
def __init__(self, fileobj, mode, zipinfo, decrypter=None,
close_fileobj=False):
self._fileobj = fileobj
self._decrypter = decrypter
self._close_fileobj = close_fileobj
self._compress_type = zipinfo.compress_type
self._compress_left = zipinfo.compress_size
self._left = zipinfo.file_size
self._decompressor = _get_decompressor(self._compress_type)
self._eof = False
self._readbuffer = b''
self._offset = 0
self.newlines = None
# Adjust read size for encrypted files since the first 12 bytes
# are for the encryption/password information.
if self._decrypter is not None:
self._compress_left -= 12
self.mode = mode
self.name = zipinfo.filename
if hasattr(zipinfo, 'CRC'):
self._expected_crc = zipinfo.CRC
self._running_crc = crc32(b'')
else:
self._expected_crc = None
def __repr__(self):
result = ['<%s.%s' % (self.__class__.__module__,
self.__class__.__qualname__)]
if not self.closed:
result.append(' name=%r mode=%r' % (self.name, self.mode))
if self._compress_type != ZIP_STORED:
result.append(' compress_type=%s' %
compressor_names.get(self._compress_type,
self._compress_type))
else:
result.append(' [closed]')
result.append('>')
return ''.join(result)
def readline(self, limit=-1):
"""Read and return a line from the stream.
If limit is specified, at most limit bytes will be read.
"""
if limit < 0:
# Shortcut common case - newline found in buffer.
i = self._readbuffer.find(b'\n', self._offset) + 1
if i > 0:
line = self._readbuffer[self._offset: i]
self._offset = i
return line
return io.BufferedIOBase.readline(self, limit)
def peek(self, n=1):
"""Returns buffered bytes without advancing the position."""
if n > len(self._readbuffer) - self._offset:
chunk = self.read(n)
if len(chunk) > self._offset:
self._readbuffer = chunk + self._readbuffer[self._offset:]
self._offset = 0
else:
self._offset -= len(chunk)
# Return up to 512 bytes to reduce allocation overhead for tight loops.
return self._readbuffer[self._offset: self._offset + 512]
def readable(self):
return True
def read(self, n=-1):
"""Read and return up to n bytes.
If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
"""
if n is None or n < 0:
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
while not self._eof:
buf += self._read1(self.MAX_N)
return buf
end = n + self._offset
if end < len(self._readbuffer):
buf = self._readbuffer[self._offset:end]
self._offset = end
return buf
n = end - len(self._readbuffer)
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
while n > 0 and not self._eof:
data = self._read1(n)
if n < len(data):
self._readbuffer = data
self._offset = n
buf += data[:n]
break
buf += data
n -= len(data)
return buf
def _update_crc(self, newdata):
# Update the CRC using the given data.
if self._expected_crc is None:
# No need to compute the CRC if we don't have a reference value
return
self._running_crc = crc32(newdata, self._running_crc)
# Check the CRC if we're at the end of the file
if self._eof and self._running_crc != self._expected_crc:
raise BadZipFile("Bad CRC-32 for file %r" % self.name)
def read1(self, n):
"""Read up to n bytes with at most one read() system call."""
if n is None or n < 0:
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
while not self._eof:
data = self._read1(self.MAX_N)
if data:
buf += data
break
return buf
end = n + self._offset
if end < len(self._readbuffer):
buf = self._readbuffer[self._offset:end]
self._offset = end
return buf
n = end - len(self._readbuffer)
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
if n > 0:
while not self._eof:
data = self._read1(n)
if n < len(data):
self._readbuffer = data
self._offset = n
buf += data[:n]
break
if data:
buf += data
break
return buf
def _read1(self, n):
# Read up to n compressed bytes with at most one read() system call,
# decrypt and decompress them.
if self._eof or n <= 0:
return b''
# Read from file.
if self._compress_type == ZIP_DEFLATED:
## Handle unconsumed data.
data = self._decompressor.unconsumed_tail
if n > len(data):
data += self._read2(n - len(data))
else:
data = self._read2(n)
if self._compress_type == ZIP_STORED:
self._eof = self._compress_left <= 0
elif self._compress_type == ZIP_DEFLATED:
n = max(n, self.MIN_READ_SIZE)
data = self._decompressor.decompress(data, n)
self._eof = (self._decompressor.eof or
self._compress_left <= 0 and
not self._decompressor.unconsumed_tail)
if self._eof:
data += self._decompressor.flush()
else:
data = self._decompressor.decompress(data)
self._eof = self._decompressor.eof or self._compress_left <= 0
data = data[:self._left]
self._left -= len(data)
if self._left <= 0:
self._eof = True
self._update_crc(data)
return data
def _read2(self, n):
if self._compress_left <= 0:
return b''
n = max(n, self.MIN_READ_SIZE)
n = min(n, self._compress_left)
data = self._fileobj.read(n)
self._compress_left -= len(data)
if not data:
raise EOFError
if self._decrypter is not None:
data = bytes(map(self._decrypter, data))
return data
def close(self):
try:
if self._close_fileobj:
self._fileobj.close()
finally:
super().close()
| (fileobj, mode, zipinfo, decrypter=None, close_fileobj=False) |
39,647 | zipfile36 | __init__ | null | def __init__(self, fileobj, mode, zipinfo, decrypter=None,
close_fileobj=False):
self._fileobj = fileobj
self._decrypter = decrypter
self._close_fileobj = close_fileobj
self._compress_type = zipinfo.compress_type
self._compress_left = zipinfo.compress_size
self._left = zipinfo.file_size
self._decompressor = _get_decompressor(self._compress_type)
self._eof = False
self._readbuffer = b''
self._offset = 0
self.newlines = None
# Adjust read size for encrypted files since the first 12 bytes
# are for the encryption/password information.
if self._decrypter is not None:
self._compress_left -= 12
self.mode = mode
self.name = zipinfo.filename
if hasattr(zipinfo, 'CRC'):
self._expected_crc = zipinfo.CRC
self._running_crc = crc32(b'')
else:
self._expected_crc = None
| (self, fileobj, mode, zipinfo, decrypter=None, close_fileobj=False) |
39,648 | zipfile36 | __repr__ | null | def __repr__(self):
result = ['<%s.%s' % (self.__class__.__module__,
self.__class__.__qualname__)]
if not self.closed:
result.append(' name=%r mode=%r' % (self.name, self.mode))
if self._compress_type != ZIP_STORED:
result.append(' compress_type=%s' %
compressor_names.get(self._compress_type,
self._compress_type))
else:
result.append(' [closed]')
result.append('>')
return ''.join(result)
| (self) |
39,649 | zipfile36 | _read1 | null | def _read1(self, n):
# Read up to n compressed bytes with at most one read() system call,
# decrypt and decompress them.
if self._eof or n <= 0:
return b''
# Read from file.
if self._compress_type == ZIP_DEFLATED:
## Handle unconsumed data.
data = self._decompressor.unconsumed_tail
if n > len(data):
data += self._read2(n - len(data))
else:
data = self._read2(n)
if self._compress_type == ZIP_STORED:
self._eof = self._compress_left <= 0
elif self._compress_type == ZIP_DEFLATED:
n = max(n, self.MIN_READ_SIZE)
data = self._decompressor.decompress(data, n)
self._eof = (self._decompressor.eof or
self._compress_left <= 0 and
not self._decompressor.unconsumed_tail)
if self._eof:
data += self._decompressor.flush()
else:
data = self._decompressor.decompress(data)
self._eof = self._decompressor.eof or self._compress_left <= 0
data = data[:self._left]
self._left -= len(data)
if self._left <= 0:
self._eof = True
self._update_crc(data)
return data
| (self, n) |
39,650 | zipfile36 | _read2 | null | def _read2(self, n):
if self._compress_left <= 0:
return b''
n = max(n, self.MIN_READ_SIZE)
n = min(n, self._compress_left)
data = self._fileobj.read(n)
self._compress_left -= len(data)
if not data:
raise EOFError
if self._decrypter is not None:
data = bytes(map(self._decrypter, data))
return data
| (self, n) |
39,651 | zipfile36 | _update_crc | null | def _update_crc(self, newdata):
# Update the CRC using the given data.
if self._expected_crc is None:
# No need to compute the CRC if we don't have a reference value
return
self._running_crc = crc32(newdata, self._running_crc)
# Check the CRC if we're at the end of the file
if self._eof and self._running_crc != self._expected_crc:
raise BadZipFile("Bad CRC-32 for file %r" % self.name)
| (self, newdata) |
39,652 | zipfile36 | close | null | def close(self):
try:
if self._close_fileobj:
self._fileobj.close()
finally:
super().close()
| (self) |
39,653 | zipfile36 | peek | Returns buffered bytes without advancing the position. | def peek(self, n=1):
"""Returns buffered bytes without advancing the position."""
if n > len(self._readbuffer) - self._offset:
chunk = self.read(n)
if len(chunk) > self._offset:
self._readbuffer = chunk + self._readbuffer[self._offset:]
self._offset = 0
else:
self._offset -= len(chunk)
# Return up to 512 bytes to reduce allocation overhead for tight loops.
return self._readbuffer[self._offset: self._offset + 512]
| (self, n=1) |
39,654 | zipfile36 | read | Read and return up to n bytes.
If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
| def read(self, n=-1):
"""Read and return up to n bytes.
If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
"""
if n is None or n < 0:
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
while not self._eof:
buf += self._read1(self.MAX_N)
return buf
end = n + self._offset
if end < len(self._readbuffer):
buf = self._readbuffer[self._offset:end]
self._offset = end
return buf
n = end - len(self._readbuffer)
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
while n > 0 and not self._eof:
data = self._read1(n)
if n < len(data):
self._readbuffer = data
self._offset = n
buf += data[:n]
break
buf += data
n -= len(data)
return buf
| (self, n=-1) |
39,655 | zipfile36 | read1 | Read up to n bytes with at most one read() system call. | def read1(self, n):
"""Read up to n bytes with at most one read() system call."""
if n is None or n < 0:
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
while not self._eof:
data = self._read1(self.MAX_N)
if data:
buf += data
break
return buf
end = n + self._offset
if end < len(self._readbuffer):
buf = self._readbuffer[self._offset:end]
self._offset = end
return buf
n = end - len(self._readbuffer)
buf = self._readbuffer[self._offset:]
self._readbuffer = b''
self._offset = 0
if n > 0:
while not self._eof:
data = self._read1(n)
if n < len(data):
self._readbuffer = data
self._offset = n
buf += data[:n]
break
if data:
buf += data
break
return buf
| (self, n) |
39,656 | zipfile36 | readable | null | def readable(self):
return True
| (self) |
39,657 | zipfile36 | readline | Read and return a line from the stream.
If limit is specified, at most limit bytes will be read.
| def readline(self, limit=-1):
"""Read and return a line from the stream.
If limit is specified, at most limit bytes will be read.
"""
if limit < 0:
# Shortcut common case - newline found in buffer.
i = self._readbuffer.find(b'\n', self._offset) + 1
if i > 0:
line = self._readbuffer[self._offset: i]
self._offset = i
return line
return io.BufferedIOBase.readline(self, limit)
| (self, limit=-1) |
39,658 | zipfile36 | ZipFile | Class with methods to open, read, write, close, list zip files.
z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=True)
file: Either the path to the file, or a file-like object.
If it is a path, the file will be opened and closed by ZipFile.
mode: The mode can be either read 'r', write 'w', exclusive create 'x',
or append 'a'.
compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
ZIP_BZIP2 (requires bz2) or ZIP_LZMA (requires lzma).
allowZip64: if True ZipFile will create files with ZIP64 extensions when
needed, otherwise it will raise an exception when this would
be necessary.
| class ZipFile:
""" Class with methods to open, read, write, close, list zip files.
z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=True)
file: Either the path to the file, or a file-like object.
If it is a path, the file will be opened and closed by ZipFile.
mode: The mode can be either read 'r', write 'w', exclusive create 'x',
or append 'a'.
compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
ZIP_BZIP2 (requires bz2) or ZIP_LZMA (requires lzma).
allowZip64: if True ZipFile will create files with ZIP64 extensions when
needed, otherwise it will raise an exception when this would
be necessary.
"""
fp = None # Set here since __del__ checks it
_windows_illegal_name_trans_table = None
def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=True):
"""Open the ZIP file with mode read 'r', write 'w', exclusive create 'x',
or append 'a'."""
if mode not in ('r', 'w', 'x', 'a'):
raise ValueError("ZipFile requires mode 'r', 'w', 'x', or 'a'")
_check_compression(compression)
self._allowZip64 = allowZip64
self._didModify = False
self.debug = 0 # Level of printing: 0 through 3
self.NameToInfo = {} # Find file info given name
self.filelist = [] # List of ZipInfo instances for archive
self.compression = compression # Method of compression
self.mode = mode
self.pwd = None
self._comment = b''
# Check if we were passed a file-like object
if isinstance(file, str):
# No, it's a filename
self._filePassed = 0
self.filename = file
modeDict = {'r' : 'rb', 'w': 'w+b', 'x': 'x+b', 'a' : 'r+b',
'r+b': 'w+b', 'w+b': 'wb', 'x+b': 'xb'}
filemode = modeDict[mode]
while True:
try:
self.fp = io.open(file, filemode)
except OSError:
if filemode in modeDict:
filemode = modeDict[filemode]
continue
raise
break
else:
self._filePassed = 1
self.fp = file
self.filename = getattr(file, 'name', None)
self._fileRefCnt = 1
self._lock = threading.RLock()
self._seekable = True
self._writing = False
try:
if mode == 'r':
self._RealGetContents()
elif mode in ('w', 'x'):
# set the modified flag so central directory gets written
# even if no files are added to the archive
self._didModify = True
try:
self.start_dir = self._start_disk = self.fp.tell()
except (AttributeError, OSError):
self.fp = _Tellable(self.fp)
self.start_dir = self._start_disk = 0
self._seekable = False
else:
# Some file-like objects can provide tell() but not seek()
try:
self.fp.seek(self.start_dir)
except (AttributeError, OSError):
self._seekable = False
elif mode == 'a':
try:
# See if file is a zip file
self._RealGetContents()
# seek to start of directory and overwrite
self.fp.seek(self.start_dir)
except BadZipFile:
# file is not a zip file, just append
self.fp.seek(0, 2)
# set the modified flag so central directory gets written
# even if no files are added to the archive
self._didModify = True
self.start_dir = self._start_disk = self.fp.tell()
else:
raise ValueError("Mode must be 'r', 'w', 'x', or 'a'")
except:
fp = self.fp
self.fp = None
self._fpclose(fp)
raise
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.close()
def __repr__(self):
result = ['<%s.%s' % (self.__class__.__module__,
self.__class__.__qualname__)]
if self.fp is not None:
if self._filePassed:
result.append(' file=%r' % self.fp)
elif self.filename is not None:
result.append(' filename=%r' % self.filename)
result.append(' mode=%r' % self.mode)
else:
result.append(' [closed]')
result.append('>')
return ''.join(result)
def _RealGetContents(self):
"""Read in the table of contents for the ZIP file."""
fp = self.fp
try:
endrec = _EndRecData(fp)
except OSError:
raise BadZipFile("File is not a zip file")
if not endrec:
raise BadZipFile("File is not a zip file")
if self.debug > 1:
print(endrec)
size_cd = endrec[_ECD_SIZE] # bytes in central directory
offset_cd = endrec[_ECD_OFFSET] # offset of central directory
self._comment = endrec[_ECD_COMMENT] # archive comment
# self._start_disk: Position of the start of ZIP archive
# It is zero, unless ZIP was concatenated to another file
self._start_disk = endrec[_ECD_LOCATION] - size_cd - offset_cd
if endrec[_ECD_SIGNATURE] == stringEndArchive64:
# If Zip64 extension structures are present, account for them
self._start_disk -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
if self.debug > 2:
inferred = self._start_disk + offset_cd
print("given, inferred, offset", offset_cd, inferred, self._start_disk)
# self.start_dir: Position of start of central directory
self.start_dir = offset_cd + self._start_disk
fp.seek(self.start_dir, 0)
data = fp.read(size_cd)
fp = io.BytesIO(data)
total = 0
while total < size_cd:
centdir = fp.read(sizeCentralDir)
if len(centdir) != sizeCentralDir:
raise BadZipFile("Truncated central directory")
centdir = struct.unpack(structCentralDir, centdir)
if centdir[_CD_SIGNATURE] != stringCentralDir:
raise BadZipFile("Bad magic number for central directory")
if self.debug > 2:
print(centdir)
filename = fp.read(centdir[_CD_FILENAME_LENGTH])
flags = centdir[5]
if flags & 0x800:
# UTF-8 file names extension
filename = filename.decode('utf-8')
else:
# Historical ZIP filename encoding
filename = filename.decode('cp437')
# Create ZipInfo instance to store file information
x = ZipInfo(filename)
x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
(x.create_version, x.create_system, x.extract_version, x.reserved,
x.flag_bits, x.compress_type, t, d,
x.CRC, x.compress_size, x.file_size) = centdir[1:12]
if x.extract_version > MAX_EXTRACT_VERSION:
raise NotImplementedError("zip file version %.1f" %
(x.extract_version / 10))
x.volume, x.internal_attr, x.external_attr = centdir[15:18]
# Convert date/time code to (year, month, day, hour, min, sec)
x._raw_time = t
x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
x._decodeExtra()
x.header_offset = x.header_offset + self._start_disk
self.filelist.append(x)
self.NameToInfo[x.filename] = x
# update total bytes read from central directory
total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
+ centdir[_CD_EXTRA_FIELD_LENGTH]
+ centdir[_CD_COMMENT_LENGTH])
if self.debug > 2:
print("total", total)
def namelist(self):
"""Return a list of file names in the archive."""
return [data.filename for data in self.filelist]
def infolist(self):
"""Return a list of class ZipInfo instances for files in the
archive."""
return self.filelist
def printdir(self, file=None):
"""Print a table of contents for the zip file."""
print("%-46s %19s %12s" % ("File Name", "Modified ", "Size"),
file=file)
for zinfo in self.filelist:
date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
print("%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size),
file=file)
def testzip(self):
"""Read all the files and check the CRC."""
chunk_size = 2 ** 20
for zinfo in self.filelist:
try:
# Read by chunks, to avoid an OverflowError or a
# MemoryError with very large embedded files.
with self.open(zinfo.filename, "r") as f:
while f.read(chunk_size): # Check CRC-32
pass
except BadZipFile:
return zinfo.filename
def getinfo(self, name):
"""Return the instance of ZipInfo given 'name'."""
info = self.NameToInfo.get(name)
if info is None:
raise KeyError(
'There is no item named %r in the archive' % name)
return info
def setpassword(self, pwd):
"""Set default password for encrypted files."""
if pwd and not isinstance(pwd, bytes):
raise TypeError("pwd: expected bytes, got %s" % type(pwd).__name__)
if pwd:
self.pwd = pwd
else:
self.pwd = None
@property
def comment(self):
"""The comment text associated with the ZIP file."""
return self._comment
@comment.setter
def comment(self, comment):
if not isinstance(comment, bytes):
raise TypeError("comment: expected bytes, got %s" % type(comment).__name__)
# check for valid comment length
if len(comment) > ZIP_MAX_COMMENT:
import warnings
warnings.warn('Archive comment is too long; truncating to %d bytes'
% ZIP_MAX_COMMENT, stacklevel=2)
comment = comment[:ZIP_MAX_COMMENT]
self._comment = comment
self._didModify = True
def read(self, name, pwd=None):
"""Return file bytes (as a string) for name."""
with self.open(name, "r", pwd) as fp:
return fp.read()
def open(self, name, mode="r", pwd=None, *, force_zip64=False):
"""Return file-like object for 'name'.
name is a string for the file name within the ZIP file, or a ZipInfo
object.
mode should be 'r' to read a file already in the ZIP file, or 'w' to
write to a file newly added to the archive.
pwd is the password to decrypt files (only used for reading).
When writing, if the file size is not known in advance but may exceed
2 GiB, pass force_zip64 to use the ZIP64 format, which can handle large
files. If the size is known in advance, it is best to pass a ZipInfo
instance for name, with zinfo.file_size set.
"""
if mode not in {"r", "w"}:
raise ValueError('open() requires mode "r" or "w"')
if pwd and not isinstance(pwd, bytes):
raise TypeError("pwd: expected bytes, got %s" % type(pwd).__name__)
if pwd and (mode == "w"):
raise ValueError("pwd is only supported for reading files")
if not self.fp:
raise ValueError(
"Attempt to use ZIP archive that was already closed")
# Make sure we have an info object
if isinstance(name, ZipInfo):
# 'name' is already an info object
zinfo = name
elif mode == 'w':
zinfo = ZipInfo(name)
zinfo.compress_type = self.compression
else:
# Get info object for name
zinfo = self.getinfo(name)
if mode == 'w':
return self._open_to_write(zinfo, force_zip64=force_zip64)
if self._writing:
raise ValueError("Can't read from the ZIP file while there "
"is an open writing handle on it. "
"Close the writing handle before trying to read.")
# Open for reading:
self._fileRefCnt += 1
zef_file = _SharedFile(self.fp, zinfo.header_offset,
self._fpclose, self._lock, lambda: self._writing)
try:
# Skip the file header:
fheader = zef_file.read(sizeFileHeader)
if len(fheader) != sizeFileHeader:
raise BadZipFile("Truncated file header")
fheader = struct.unpack(structFileHeader, fheader)
if fheader[_FH_SIGNATURE] != stringFileHeader:
raise BadZipFile("Bad magic number for file header")
fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
if fheader[_FH_EXTRA_FIELD_LENGTH]:
zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
if zinfo.flag_bits & 0x20:
# Zip 2.7: compressed patched data
raise NotImplementedError("compressed patched data (flag bit 5)")
if zinfo.flag_bits & 0x40:
# strong encryption
raise NotImplementedError("strong encryption (flag bit 6)")
if zinfo.flag_bits & 0x800:
# UTF-8 filename
fname_str = fname.decode("utf-8")
else:
fname_str = fname.decode("cp437")
if fname_str != zinfo.orig_filename:
raise BadZipFile(
'File name in directory %r and header %r differ.'
% (zinfo.orig_filename, fname))
# check for encrypted flag & handle password
is_encrypted = zinfo.flag_bits & 0x1
zd = None
if is_encrypted:
if not pwd:
pwd = self.pwd
if not pwd:
raise RuntimeError("File %r is encrypted, password "
"required for extraction" % name)
zd = _ZipDecrypter(pwd)
# The first 12 bytes in the cypher stream is an encryption header
# used to strengthen the algorithm. The first 11 bytes are
# completely random, while the 12th contains the MSB of the CRC,
# or the MSB of the file time depending on the header type
# and is used to check the correctness of the password.
header = zef_file.read(12)
h = list(map(zd, header[0:12]))
if zinfo.flag_bits & 0x8:
# compare against the file type from extended local headers
check_byte = (zinfo._raw_time >> 8) & 0xff
else:
# compare against the CRC otherwise
check_byte = (zinfo.CRC >> 24) & 0xff
if h[11] != check_byte:
raise RuntimeError("Bad password for file %r" % name)
return ZipExtFile(zef_file, mode, zinfo, zd, True)
except:
zef_file.close()
raise
def _open_to_write(self, zinfo, force_zip64=False):
if force_zip64 and not self._allowZip64:
raise ValueError(
"force_zip64 is True, but allowZip64 was False when opening "
"the ZIP file."
)
if self._writing:
raise ValueError("Can't write to the ZIP file while there is "
"another write handle open on it. "
"Close the first handle before opening another.")
# Sizes and CRC are overwritten with correct data after processing the file
if not hasattr(zinfo, 'file_size'):
zinfo.file_size = 0
zinfo.compress_size = 0
zinfo.CRC = 0
zinfo.flag_bits = 0x00
if zinfo.compress_type == ZIP_LZMA:
# Compressed data includes an end-of-stream (EOS) marker
zinfo.flag_bits |= 0x02
if not self._seekable:
zinfo.flag_bits |= 0x08
if not zinfo.external_attr:
zinfo.external_attr = 0o600 << 16 # permissions: ?rw-------
# Compressed size can be larger than uncompressed size
zip64 = self._allowZip64 and \
(force_zip64 or zinfo.file_size * 1.05 > ZIP64_LIMIT)
if self._seekable:
self.fp.seek(self.start_dir)
zinfo.header_offset = self.fp.tell()
self._writecheck(zinfo)
self._didModify = True
self.fp.write(zinfo.FileHeader(zip64))
self._writing = True
return _ZipWriteFile(self, zinfo, zip64)
def extract(self, member, path=None, pwd=None):
"""Extract a member from the archive to the current working directory,
using its full name. Its file information is extracted as accurately
as possible. `member' may be a filename or a ZipInfo object. You can
specify a different directory using `path'.
"""
if not isinstance(member, ZipInfo):
member = self.getinfo(member)
if path is None:
path = os.getcwd()
return self._extract_member(member, path, pwd)
def extractall(self, path=None, members=None, pwd=None):
"""Extract all members from the archive to the current working
directory. `path' specifies a different directory to extract to.
`members' is optional and must be a subset of the list returned
by namelist().
"""
if members is None:
members = self.namelist()
for zipinfo in members:
self.extract(zipinfo, path, pwd)
@classmethod
def _sanitize_windows_name(cls, arcname, pathsep):
"""Replace bad characters and remove trailing dots from parts."""
table = cls._windows_illegal_name_trans_table
if not table:
illegal = ':<>|"?*'
table = str.maketrans(illegal, '_' * len(illegal))
cls._windows_illegal_name_trans_table = table
arcname = arcname.translate(table)
# remove trailing dots
arcname = (x.rstrip('.') for x in arcname.split(pathsep))
# rejoin, removing empty parts.
arcname = pathsep.join(x for x in arcname if x)
return arcname
def _extract_member(self, member, targetpath, pwd):
"""Extract the ZipInfo object 'member' to a physical
file on the path targetpath.
"""
# build the destination pathname, replacing
# forward slashes to platform specific separators.
arcname = member.filename.replace('/', os.path.sep)
if os.path.altsep:
arcname = arcname.replace(os.path.altsep, os.path.sep)
# interpret absolute pathname as relative, remove drive letter or
# UNC path, redundant separators, "." and ".." components.
arcname = os.path.splitdrive(arcname)[1]
invalid_path_parts = ('', os.path.curdir, os.path.pardir)
arcname = os.path.sep.join(x for x in arcname.split(os.path.sep)
if x not in invalid_path_parts)
if os.path.sep == '\\':
# filter illegal characters on Windows
arcname = self._sanitize_windows_name(arcname, os.path.sep)
targetpath = os.path.join(targetpath, arcname)
targetpath = os.path.normpath(targetpath)
# Create all upper directories if necessary.
upperdirs = os.path.dirname(targetpath)
if upperdirs and not os.path.exists(upperdirs):
os.makedirs(upperdirs)
if member.is_dir():
if not os.path.isdir(targetpath):
os.mkdir(targetpath)
return targetpath
with self.open(member, pwd=pwd) as source, \
open(targetpath, "wb") as target:
shutil.copyfileobj(source, target)
return targetpath
def _writecheck(self, zinfo):
"""Check for errors before writing a file to the archive."""
if zinfo.filename in self.NameToInfo:
import warnings
warnings.warn('Duplicate name: %r' % zinfo.filename, stacklevel=3)
if self.mode not in ('w', 'x', 'a'):
raise ValueError("write() requires mode 'w', 'x', or 'a'")
if not self.fp:
raise ValueError(
"Attempt to write ZIP archive that was already closed")
_check_compression(zinfo.compress_type)
if not self._allowZip64:
requires_zip64 = None
if len(self.filelist) >= ZIP_FILECOUNT_LIMIT:
requires_zip64 = "Files count"
elif zinfo.file_size > ZIP64_LIMIT:
requires_zip64 = "Filesize"
elif zinfo.header_offset > ZIP64_LIMIT:
requires_zip64 = "Zipfile size"
if requires_zip64:
raise LargeZipFile(requires_zip64 +
" would require ZIP64 extensions")
def write(self, filename, arcname=None, compress_type=None):
"""Put the bytes from filename into the archive under the name
arcname."""
if not self.fp:
raise ValueError(
"Attempt to write to ZIP archive that was already closed")
if self._writing:
raise ValueError(
"Can't write to ZIP archive while an open writing handle exists"
)
zinfo = ZipInfo.from_file(filename, arcname)
if zinfo.is_dir():
zinfo.compress_size = 0
zinfo.CRC = 0
else:
if compress_type is not None:
zinfo.compress_type = compress_type
else:
zinfo.compress_type = self.compression
if zinfo.is_dir():
with self._lock:
if self._seekable:
self.fp.seek(self.start_dir)
zinfo.header_offset = self.fp.tell() # Start of header bytes
if zinfo.compress_type == ZIP_LZMA:
# Compressed data includes an end-of-stream (EOS) marker
zinfo.flag_bits |= 0x02
self._writecheck(zinfo)
self._didModify = True
self.filelist.append(zinfo)
self.NameToInfo[zinfo.filename] = zinfo
self.fp.write(zinfo.FileHeader(False))
self.start_dir = self.fp.tell()
else:
with open(filename, "rb") as src, self.open(zinfo, 'w') as dest:
shutil.copyfileobj(src, dest, 1024*8)
def writestr(self, zinfo_or_arcname, data, compress_type=None):
"""Write a file into the archive. The contents is 'data', which
may be either a 'str' or a 'bytes' instance; if it is a 'str',
it is encoded as UTF-8 first.
'zinfo_or_arcname' is either a ZipInfo instance or
the name of the file in the archive."""
if isinstance(data, str):
data = data.encode("utf-8")
if not isinstance(zinfo_or_arcname, ZipInfo):
zinfo = ZipInfo(filename=zinfo_or_arcname,
date_time=time.localtime(time.time())[:6])
zinfo.compress_type = self.compression
if zinfo.filename[-1] == '/':
zinfo.external_attr = 0o40775 << 16 # drwxrwxr-x
zinfo.external_attr |= 0x10 # MS-DOS directory flag
else:
zinfo.external_attr = 0o600 << 16 # ?rw-------
else:
zinfo = zinfo_or_arcname
if not self.fp:
raise ValueError(
"Attempt to write to ZIP archive that was already closed")
if self._writing:
raise ValueError(
"Can't write to ZIP archive while an open writing handle exists."
)
if compress_type is not None:
zinfo.compress_type = compress_type
zinfo.file_size = len(data) # Uncompressed size
with self._lock:
with self.open(zinfo, mode='w') as dest:
dest.write(data)
def __del__(self):
"""Call the "close()" method in case the user forgot."""
self.close()
def close(self):
"""Close the file, and for mode 'w', 'x' and 'a' write the ending
records."""
if self.fp is None:
return
if self._writing:
raise ValueError("Can't close the ZIP file while there is "
"an open writing handle on it. "
"Close the writing handle before closing the zip.")
try:
if self.mode in ('w', 'x', 'a') and self._didModify: # write ending records
with self._lock:
if self._seekable:
self.fp.seek(self.start_dir)
self._write_end_record()
finally:
fp = self.fp
self.fp = None
self._fpclose(fp)
def _write_end_record(self):
for zinfo in self.filelist: # write central directory
dt = zinfo.date_time
dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
extra = []
if zinfo.file_size > ZIP64_LIMIT \
or zinfo.compress_size > ZIP64_LIMIT:
extra.append(zinfo.file_size)
extra.append(zinfo.compress_size)
file_size = 0xffffffff
compress_size = 0xffffffff
else:
file_size = zinfo.file_size
compress_size = zinfo.compress_size
header_offset = zinfo.header_offset - self._start_disk
if header_offset > ZIP64_LIMIT:
extra.append(header_offset)
header_offset = 0xffffffff
extra_data = zinfo.extra
min_version = 0
if extra:
# Append a ZIP64 field to the extra's
extra_data = struct.pack(
'<HH' + 'Q'*len(extra),
1, 8*len(extra), *extra) + extra_data
min_version = ZIP64_VERSION
if zinfo.compress_type == ZIP_BZIP2:
min_version = max(BZIP2_VERSION, min_version)
elif zinfo.compress_type == ZIP_LZMA:
min_version = max(LZMA_VERSION, min_version)
extract_version = max(min_version, zinfo.extract_version)
create_version = max(min_version, zinfo.create_version)
try:
filename, flag_bits = zinfo._encodeFilenameFlags()
centdir = struct.pack(structCentralDir,
stringCentralDir, create_version,
zinfo.create_system, extract_version, zinfo.reserved,
flag_bits, zinfo.compress_type, dostime, dosdate,
zinfo.CRC, compress_size, file_size,
len(filename), len(extra_data), len(zinfo.comment),
0, zinfo.internal_attr, zinfo.external_attr,
header_offset)
except DeprecationWarning:
print((structCentralDir, stringCentralDir, create_version,
zinfo.create_system, extract_version, zinfo.reserved,
zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
zinfo.CRC, compress_size, file_size,
len(zinfo.filename), len(extra_data), len(zinfo.comment),
0, zinfo.internal_attr, zinfo.external_attr,
header_offset), file=sys.stderr)
raise
self.fp.write(centdir)
self.fp.write(filename)
self.fp.write(extra_data)
self.fp.write(zinfo.comment)
pos2 = self.fp.tell()
# Write end-of-zip-archive record
centDirCount = len(self.filelist)
centDirSize = pos2 - self.start_dir
centDirOffset = self.start_dir - self._start_disk
requires_zip64 = None
if centDirCount > ZIP_FILECOUNT_LIMIT:
requires_zip64 = "Files count"
elif centDirOffset > ZIP64_LIMIT:
requires_zip64 = "Central directory offset"
elif centDirSize > ZIP64_LIMIT:
requires_zip64 = "Central directory size"
if requires_zip64:
# Need to write the ZIP64 end-of-archive records
if not self._allowZip64:
raise LargeZipFile(requires_zip64 +
" would require ZIP64 extensions")
zip64endrec = struct.pack(
structEndArchive64, stringEndArchive64,
44, 45, 45, 0, 0, centDirCount, centDirCount,
centDirSize, centDirOffset)
self.fp.write(zip64endrec)
zip64locrec = struct.pack(
structEndArchive64Locator,
stringEndArchive64Locator, 0, pos2, 1)
self.fp.write(zip64locrec)
centDirCount = min(centDirCount, 0xFFFF)
centDirSize = min(centDirSize, 0xFFFFFFFF)
centDirOffset = min(centDirOffset, 0xFFFFFFFF)
endrec = struct.pack(structEndArchive, stringEndArchive,
0, 0, centDirCount, centDirCount,
centDirSize, centDirOffset, len(self._comment))
self.fp.write(endrec)
self.fp.write(self._comment)
self.fp.flush()
def _fpclose(self, fp):
assert self._fileRefCnt > 0
self._fileRefCnt -= 1
if not self._fileRefCnt and not self._filePassed:
fp.close()
| (file, mode='r', compression=0, allowZip64=True) |
39,663 | zipfile36 | __init__ | Open the ZIP file with mode read 'r', write 'w', exclusive create 'x',
or append 'a'. | def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=True):
"""Open the ZIP file with mode read 'r', write 'w', exclusive create 'x',
or append 'a'."""
if mode not in ('r', 'w', 'x', 'a'):
raise ValueError("ZipFile requires mode 'r', 'w', 'x', or 'a'")
_check_compression(compression)
self._allowZip64 = allowZip64
self._didModify = False
self.debug = 0 # Level of printing: 0 through 3
self.NameToInfo = {} # Find file info given name
self.filelist = [] # List of ZipInfo instances for archive
self.compression = compression # Method of compression
self.mode = mode
self.pwd = None
self._comment = b''
# Check if we were passed a file-like object
if isinstance(file, str):
# No, it's a filename
self._filePassed = 0
self.filename = file
modeDict = {'r' : 'rb', 'w': 'w+b', 'x': 'x+b', 'a' : 'r+b',
'r+b': 'w+b', 'w+b': 'wb', 'x+b': 'xb'}
filemode = modeDict[mode]
while True:
try:
self.fp = io.open(file, filemode)
except OSError:
if filemode in modeDict:
filemode = modeDict[filemode]
continue
raise
break
else:
self._filePassed = 1
self.fp = file
self.filename = getattr(file, 'name', None)
self._fileRefCnt = 1
self._lock = threading.RLock()
self._seekable = True
self._writing = False
try:
if mode == 'r':
self._RealGetContents()
elif mode in ('w', 'x'):
# set the modified flag so central directory gets written
# even if no files are added to the archive
self._didModify = True
try:
self.start_dir = self._start_disk = self.fp.tell()
except (AttributeError, OSError):
self.fp = _Tellable(self.fp)
self.start_dir = self._start_disk = 0
self._seekable = False
else:
# Some file-like objects can provide tell() but not seek()
try:
self.fp.seek(self.start_dir)
except (AttributeError, OSError):
self._seekable = False
elif mode == 'a':
try:
# See if file is a zip file
self._RealGetContents()
# seek to start of directory and overwrite
self.fp.seek(self.start_dir)
except BadZipFile:
# file is not a zip file, just append
self.fp.seek(0, 2)
# set the modified flag so central directory gets written
# even if no files are added to the archive
self._didModify = True
self.start_dir = self._start_disk = self.fp.tell()
else:
raise ValueError("Mode must be 'r', 'w', 'x', or 'a'")
except:
fp = self.fp
self.fp = None
self._fpclose(fp)
raise
| (self, file, mode='r', compression=0, allowZip64=True) |
39,683 | zipfile36 | ZipInfo | Class with attributes describing each file in the ZIP archive. | class ZipInfo (object):
"""Class with attributes describing each file in the ZIP archive."""
__slots__ = (
'orig_filename',
'filename',
'date_time',
'compress_type',
'comment',
'extra',
'create_system',
'create_version',
'extract_version',
'reserved',
'flag_bits',
'volume',
'internal_attr',
'external_attr',
'header_offset',
'CRC',
'compress_size',
'file_size',
'_raw_time',
)
def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
self.orig_filename = filename # Original file name in archive
# Terminate the file name at the first null byte. Null bytes in file
# names are used as tricks by viruses in archives.
null_byte = filename.find(chr(0))
if null_byte >= 0:
filename = filename[0:null_byte]
# This is used to ensure paths in generated ZIP files always use
# forward slashes as the directory separator, as required by the
# ZIP format specification.
if os.sep != "/" and os.sep in filename:
filename = filename.replace(os.sep, "/")
self.filename = filename # Normalized file name
self.date_time = date_time # year, month, day, hour, min, sec
if date_time[0] < 1980:
raise ValueError('ZIP does not support timestamps before 1980')
# Standard values:
self.compress_type = ZIP_STORED # Type of compression for the file
self.comment = b"" # Comment for each file
self.extra = b"" # ZIP extra data
if sys.platform == 'win32':
self.create_system = 0 # System which created ZIP archive
else:
# Assume everything else is unix-y
self.create_system = 3 # System which created ZIP archive
self.create_version = DEFAULT_VERSION # Version which created ZIP archive
self.extract_version = DEFAULT_VERSION # Version needed to extract archive
self.reserved = 0 # Must be zero
self.flag_bits = 0 # ZIP flag bits
self.volume = 0 # Volume number of file header
self.internal_attr = 0 # Internal attributes
self.external_attr = 0 # External file attributes
# Other attributes are set by class ZipFile:
# header_offset Byte offset to the file header
# CRC CRC-32 of the uncompressed file
# compress_size Size of the compressed file
# file_size Size of the uncompressed file
def __repr__(self):
result = ['<%s filename=%r' % (self.__class__.__name__, self.filename)]
if self.compress_type != ZIP_STORED:
result.append(' compress_type=%s' %
compressor_names.get(self.compress_type,
self.compress_type))
hi = self.external_attr >> 16
lo = self.external_attr & 0xFFFF
if hi:
result.append(' filemode=%r' % stat.filemode(hi))
if lo:
result.append(' external_attr=%#x' % lo)
isdir = self.is_dir()
if not isdir or self.file_size:
result.append(' file_size=%r' % self.file_size)
if ((not isdir or self.compress_size) and
(self.compress_type != ZIP_STORED or
self.file_size != self.compress_size)):
result.append(' compress_size=%r' % self.compress_size)
result.append('>')
return ''.join(result)
def FileHeader(self, zip64=None):
"""Return the per-file header as a string."""
dt = self.date_time
dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
if self.flag_bits & 0x08:
# Set these to zero because we write them after the file data
CRC = compress_size = file_size = 0
else:
CRC = self.CRC
compress_size = self.compress_size
file_size = self.file_size
extra = self.extra
min_version = 0
if zip64 is None:
zip64 = file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT
if zip64:
fmt = '<HHQQ'
extra = extra + struct.pack(fmt,
1, struct.calcsize(fmt)-4, file_size, compress_size)
if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
if not zip64:
raise LargeZipFile("Filesize would require ZIP64 extensions")
# File is larger than what fits into a 4 byte integer,
# fall back to the ZIP64 extension
file_size = 0xffffffff
compress_size = 0xffffffff
min_version = ZIP64_VERSION
if self.compress_type == ZIP_BZIP2:
min_version = max(BZIP2_VERSION, min_version)
elif self.compress_type == ZIP_LZMA:
min_version = max(LZMA_VERSION, min_version)
self.extract_version = max(min_version, self.extract_version)
self.create_version = max(min_version, self.create_version)
filename, flag_bits = self._encodeFilenameFlags()
header = struct.pack(structFileHeader, stringFileHeader,
self.extract_version, self.reserved, flag_bits,
self.compress_type, dostime, dosdate, CRC,
compress_size, file_size,
len(filename), len(extra))
return header + filename + extra
def _encodeFilenameFlags(self):
try:
return self.filename.encode('ascii'), self.flag_bits
except UnicodeEncodeError:
return self.filename.encode('utf-8'), self.flag_bits | 0x800
def _decodeExtra(self):
# Try to decode the extra field.
extra = self.extra
unpack = struct.unpack
while len(extra) >= 4:
tp, ln = unpack('<HH', extra[:4])
if tp == 1:
if ln >= 24:
counts = unpack('<QQQ', extra[4:28])
elif ln == 16:
counts = unpack('<QQ', extra[4:20])
elif ln == 8:
counts = unpack('<Q', extra[4:12])
elif ln == 0:
counts = ()
else:
raise BadZipFile("Corrupt extra field %04x (size=%d)" % (tp, ln))
idx = 0
# ZIP64 extension (large files and/or large archives)
if self.file_size in (0xffffffffffffffff, 0xffffffff):
self.file_size = counts[idx]
idx += 1
if self.compress_size == 0xFFFFFFFF:
self.compress_size = counts[idx]
idx += 1
if self.header_offset == 0xffffffff:
old = self.header_offset
self.header_offset = counts[idx]
idx+=1
extra = extra[ln+4:]
@classmethod
def from_file(cls, filename, arcname=None):
"""Construct an appropriate ZipInfo for a file on the filesystem.
filename should be the path to a file or directory on the filesystem.
arcname is the name which it will have within the archive (by default,
this will be the same as filename, but without a drive letter and with
leading path separators removed).
"""
st = os.stat(filename)
isdir = stat.S_ISDIR(st.st_mode)
mtime = time.localtime(st.st_mtime)
date_time = mtime[0:6]
# Create ZipInfo instance to store file information
if arcname is None:
arcname = filename
arcname = os.path.normpath(os.path.splitdrive(arcname)[1])
while arcname[0] in (os.sep, os.altsep):
arcname = arcname[1:]
if isdir:
arcname += '/'
zinfo = cls(arcname, date_time)
zinfo.external_attr = (st.st_mode & 0xFFFF) << 16 # Unix attributes
if isdir:
zinfo.file_size = 0
zinfo.external_attr |= 0x10 # MS-DOS directory flag
else:
zinfo.file_size = st.st_size
return zinfo
def is_dir(self):
"""Return True if this archive member is a directory."""
return self.filename[-1] == '/'
| (filename='NoName', date_time=(1980, 1, 1, 0, 0, 0)) |
39,684 | zipfile36 | FileHeader | Return the per-file header as a string. | def FileHeader(self, zip64=None):
"""Return the per-file header as a string."""
dt = self.date_time
dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
if self.flag_bits & 0x08:
# Set these to zero because we write them after the file data
CRC = compress_size = file_size = 0
else:
CRC = self.CRC
compress_size = self.compress_size
file_size = self.file_size
extra = self.extra
min_version = 0
if zip64 is None:
zip64 = file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT
if zip64:
fmt = '<HHQQ'
extra = extra + struct.pack(fmt,
1, struct.calcsize(fmt)-4, file_size, compress_size)
if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
if not zip64:
raise LargeZipFile("Filesize would require ZIP64 extensions")
# File is larger than what fits into a 4 byte integer,
# fall back to the ZIP64 extension
file_size = 0xffffffff
compress_size = 0xffffffff
min_version = ZIP64_VERSION
if self.compress_type == ZIP_BZIP2:
min_version = max(BZIP2_VERSION, min_version)
elif self.compress_type == ZIP_LZMA:
min_version = max(LZMA_VERSION, min_version)
self.extract_version = max(min_version, self.extract_version)
self.create_version = max(min_version, self.create_version)
filename, flag_bits = self._encodeFilenameFlags()
header = struct.pack(structFileHeader, stringFileHeader,
self.extract_version, self.reserved, flag_bits,
self.compress_type, dostime, dosdate, CRC,
compress_size, file_size,
len(filename), len(extra))
return header + filename + extra
| (self, zip64=None) |
39,685 | zipfile36 | __init__ | null | def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
self.orig_filename = filename # Original file name in archive
# Terminate the file name at the first null byte. Null bytes in file
# names are used as tricks by viruses in archives.
null_byte = filename.find(chr(0))
if null_byte >= 0:
filename = filename[0:null_byte]
# This is used to ensure paths in generated ZIP files always use
# forward slashes as the directory separator, as required by the
# ZIP format specification.
if os.sep != "/" and os.sep in filename:
filename = filename.replace(os.sep, "/")
self.filename = filename # Normalized file name
self.date_time = date_time # year, month, day, hour, min, sec
if date_time[0] < 1980:
raise ValueError('ZIP does not support timestamps before 1980')
# Standard values:
self.compress_type = ZIP_STORED # Type of compression for the file
self.comment = b"" # Comment for each file
self.extra = b"" # ZIP extra data
if sys.platform == 'win32':
self.create_system = 0 # System which created ZIP archive
else:
# Assume everything else is unix-y
self.create_system = 3 # System which created ZIP archive
self.create_version = DEFAULT_VERSION # Version which created ZIP archive
self.extract_version = DEFAULT_VERSION # Version needed to extract archive
self.reserved = 0 # Must be zero
self.flag_bits = 0 # ZIP flag bits
self.volume = 0 # Volume number of file header
self.internal_attr = 0 # Internal attributes
self.external_attr = 0 # External file attributes
# Other attributes are set by class ZipFile:
# header_offset Byte offset to the file header
# CRC CRC-32 of the uncompressed file
# compress_size Size of the compressed file
# file_size Size of the uncompressed file
| (self, filename='NoName', date_time=(1980, 1, 1, 0, 0, 0)) |
39,686 | zipfile36 | __repr__ | null | def __repr__(self):
result = ['<%s filename=%r' % (self.__class__.__name__, self.filename)]
if self.compress_type != ZIP_STORED:
result.append(' compress_type=%s' %
compressor_names.get(self.compress_type,
self.compress_type))
hi = self.external_attr >> 16
lo = self.external_attr & 0xFFFF
if hi:
result.append(' filemode=%r' % stat.filemode(hi))
if lo:
result.append(' external_attr=%#x' % lo)
isdir = self.is_dir()
if not isdir or self.file_size:
result.append(' file_size=%r' % self.file_size)
if ((not isdir or self.compress_size) and
(self.compress_type != ZIP_STORED or
self.file_size != self.compress_size)):
result.append(' compress_size=%r' % self.compress_size)
result.append('>')
return ''.join(result)
| (self) |
39,687 | zipfile36 | _decodeExtra | null | def _decodeExtra(self):
# Try to decode the extra field.
extra = self.extra
unpack = struct.unpack
while len(extra) >= 4:
tp, ln = unpack('<HH', extra[:4])
if tp == 1:
if ln >= 24:
counts = unpack('<QQQ', extra[4:28])
elif ln == 16:
counts = unpack('<QQ', extra[4:20])
elif ln == 8:
counts = unpack('<Q', extra[4:12])
elif ln == 0:
counts = ()
else:
raise BadZipFile("Corrupt extra field %04x (size=%d)" % (tp, ln))
idx = 0
# ZIP64 extension (large files and/or large archives)
if self.file_size in (0xffffffffffffffff, 0xffffffff):
self.file_size = counts[idx]
idx += 1
if self.compress_size == 0xFFFFFFFF:
self.compress_size = counts[idx]
idx += 1
if self.header_offset == 0xffffffff:
old = self.header_offset
self.header_offset = counts[idx]
idx+=1
extra = extra[ln+4:]
| (self) |
39,688 | zipfile36 | _encodeFilenameFlags | null | def _encodeFilenameFlags(self):
try:
return self.filename.encode('ascii'), self.flag_bits
except UnicodeEncodeError:
return self.filename.encode('utf-8'), self.flag_bits | 0x800
| (self) |
39,689 | zipfile36 | is_dir | Return True if this archive member is a directory. | def is_dir(self):
"""Return True if this archive member is a directory."""
return self.filename[-1] == '/'
| (self) |
39,690 | zipfile36 | _EndRecData | Return data from the "End of Central Directory" record, or None.
The data is a list of the nine items in the ZIP "End of central dir"
record followed by a tenth item, the file seek offset of this record. | def _EndRecData(fpin):
"""Return data from the "End of Central Directory" record, or None.
The data is a list of the nine items in the ZIP "End of central dir"
record followed by a tenth item, the file seek offset of this record."""
# Determine file size
fpin.seek(0, 2)
filesize = fpin.tell()
# Check to see if this is ZIP file with no archive comment (the
# "end of central directory" structure should be the last item in the
# file if this is the case).
try:
fpin.seek(-sizeEndCentDir, 2)
except OSError:
return None
data = fpin.read()
if (len(data) == sizeEndCentDir and
data[0:4] == stringEndArchive and
data[-2:] == b"\000\000"):
# the signature is correct and there's no comment, unpack structure
endrec = struct.unpack(structEndArchive, data)
endrec=list(endrec)
# Append a blank comment and record start offset
endrec.append(b"")
endrec.append(filesize - sizeEndCentDir)
# Try to read the "Zip64 end of central directory" structure
return _EndRecData64(fpin, -sizeEndCentDir, endrec)
# Either this is not a ZIP file, or it is a ZIP file with an archive
# comment. Search the end of the file for the "end of central directory"
# record signature. The comment is the last item in the ZIP file and may be
# up to 64K long. It is assumed that the "end of central directory" magic
# number does not appear in the comment.
maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0)
fpin.seek(maxCommentStart, 0)
data = fpin.read()
start = data.rfind(stringEndArchive)
if start >= 0:
# found the magic number; attempt to unpack and interpret
recData = data[start:start+sizeEndCentDir]
if len(recData) != sizeEndCentDir:
# Zip file is corrupted.
return None
endrec = list(struct.unpack(structEndArchive, recData))
commentSize = endrec[_ECD_COMMENT_SIZE] #as claimed by the zip file
comment = data[start+sizeEndCentDir:start+sizeEndCentDir+commentSize]
endrec.append(comment)
endrec.append(maxCommentStart + start)
# Try to read the "Zip64 end of central directory" structure
return _EndRecData64(fpin, maxCommentStart + start - filesize,
endrec)
# Unable to find a valid end of central directory structure
return None
| (fpin) |
39,691 | zipfile36 | _EndRecData64 |
Read the ZIP64 end-of-archive records and use that to update endrec
| def _EndRecData64(fpin, offset, endrec):
"""
Read the ZIP64 end-of-archive records and use that to update endrec
"""
try:
fpin.seek(offset - sizeEndCentDir64Locator, 2)
except OSError:
# If the seek fails, the file is not large enough to contain a ZIP64
# end-of-archive record, so just return the end record we were given.
return endrec
data = fpin.read(sizeEndCentDir64Locator)
if len(data) != sizeEndCentDir64Locator:
return endrec
sig, diskno, reloff, disks = struct.unpack(structEndArchive64Locator, data)
if sig != stringEndArchive64Locator:
return endrec
if diskno != 0 or disks != 1:
raise BadZipFile("zipfiles that span multiple disks are not supported")
# Assume no 'zip64 extensible data'
fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2)
data = fpin.read(sizeEndCentDir64)
if len(data) != sizeEndCentDir64:
return endrec
sig, sz, create_version, read_version, disk_num, disk_dir, \
dircount, dircount2, dirsize, diroffset = \
struct.unpack(structEndArchive64, data)
if sig != stringEndArchive64:
return endrec
# Update the original endrec using data from the ZIP64 record
endrec[_ECD_SIGNATURE] = sig
endrec[_ECD_DISK_NUMBER] = disk_num
endrec[_ECD_DISK_START] = disk_dir
endrec[_ECD_ENTRIES_THIS_DISK] = dircount
endrec[_ECD_ENTRIES_TOTAL] = dircount2
endrec[_ECD_SIZE] = dirsize
endrec[_ECD_OFFSET] = diroffset
return endrec
| (fpin, offset, endrec) |
39,692 | zipfile36 | _SharedFile | null | class _SharedFile:
def __init__(self, file, pos, close, lock, writing):
self._file = file
self._pos = pos
self._close = close
self._lock = lock
self._writing = writing
def read(self, n=-1):
with self._lock:
if self._writing():
raise ValueError("Can't read from the ZIP file while there "
"is an open writing handle on it. "
"Close the writing handle before trying to read.")
self._file.seek(self._pos)
data = self._file.read(n)
self._pos = self._file.tell()
return data
def close(self):
if self._file is not None:
fileobj = self._file
self._file = None
self._close(fileobj)
| (file, pos, close, lock, writing) |
39,693 | zipfile36 | __init__ | null | def __init__(self, file, pos, close, lock, writing):
self._file = file
self._pos = pos
self._close = close
self._lock = lock
self._writing = writing
| (self, file, pos, close, lock, writing) |
39,694 | zipfile36 | close | null | def close(self):
if self._file is not None:
fileobj = self._file
self._file = None
self._close(fileobj)
| (self) |
39,695 | zipfile36 | read | null | def read(self, n=-1):
with self._lock:
if self._writing():
raise ValueError("Can't read from the ZIP file while there "
"is an open writing handle on it. "
"Close the writing handle before trying to read.")
self._file.seek(self._pos)
data = self._file.read(n)
self._pos = self._file.tell()
return data
| (self, n=-1) |
39,696 | zipfile36 | _Tellable | null | class _Tellable:
def __init__(self, fp):
self.fp = fp
self.offset = 0
def write(self, data):
n = self.fp.write(data)
self.offset += n
return n
def tell(self):
return self.offset
def flush(self):
self.fp.flush()
def close(self):
self.fp.close()
| (fp) |
39,697 | zipfile36 | __init__ | null | def __init__(self, fp):
self.fp = fp
self.offset = 0
| (self, fp) |
39,698 | zipfile36 | close | null | def close(self):
self.fp.close()
| (self) |
39,699 | zipfile36 | flush | null | def flush(self):
self.fp.flush()
| (self) |
39,700 | zipfile36 | tell | null | def tell(self):
return self.offset
| (self) |
39,701 | zipfile36 | write | null | def write(self, data):
n = self.fp.write(data)
self.offset += n
return n
| (self, data) |
39,702 | zipfile36 | _ZipDecrypter | Class to handle decryption of files stored within a ZIP archive.
ZIP supports a password-based form of encryption. Even though known
plaintext attacks have been found against it, it is still useful
to be able to get data out of such a file.
Usage:
zd = _ZipDecrypter(mypwd)
plain_char = zd(cypher_char)
plain_text = map(zd, cypher_text)
| class _ZipDecrypter:
"""Class to handle decryption of files stored within a ZIP archive.
ZIP supports a password-based form of encryption. Even though known
plaintext attacks have been found against it, it is still useful
to be able to get data out of such a file.
Usage:
zd = _ZipDecrypter(mypwd)
plain_char = zd(cypher_char)
plain_text = map(zd, cypher_text)
"""
def _GenerateCRCTable():
"""Generate a CRC-32 table.
ZIP encryption uses the CRC32 one-byte primitive for scrambling some
internal keys. We noticed that a direct implementation is faster than
relying on binascii.crc32().
"""
poly = 0xedb88320
table = [0] * 256
for i in range(256):
crc = i
for j in range(8):
if crc & 1:
crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
else:
crc = ((crc >> 1) & 0x7FFFFFFF)
table[i] = crc
return table
crctable = None
def _crc32(self, ch, crc):
"""Compute the CRC32 primitive on one byte."""
return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ch) & 0xff]
def __init__(self, pwd):
if _ZipDecrypter.crctable is None:
_ZipDecrypter.crctable = _ZipDecrypter._GenerateCRCTable()
self.key0 = 305419896
self.key1 = 591751049
self.key2 = 878082192
for p in pwd:
self._UpdateKeys(p)
def _UpdateKeys(self, c):
self.key0 = self._crc32(c, self.key0)
self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
self.key1 = (self.key1 * 134775813 + 1) & 4294967295
self.key2 = self._crc32((self.key1 >> 24) & 255, self.key2)
def __call__(self, c):
"""Decrypt a single character."""
assert isinstance(c, int)
k = self.key2 | 2
c = c ^ (((k * (k^1)) >> 8) & 255)
self._UpdateKeys(c)
return c
| (pwd) |
39,703 | zipfile36 | _GenerateCRCTable | Generate a CRC-32 table.
ZIP encryption uses the CRC32 one-byte primitive for scrambling some
internal keys. We noticed that a direct implementation is faster than
relying on binascii.crc32().
| def _GenerateCRCTable():
"""Generate a CRC-32 table.
ZIP encryption uses the CRC32 one-byte primitive for scrambling some
internal keys. We noticed that a direct implementation is faster than
relying on binascii.crc32().
"""
poly = 0xedb88320
table = [0] * 256
for i in range(256):
crc = i
for j in range(8):
if crc & 1:
crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
else:
crc = ((crc >> 1) & 0x7FFFFFFF)
table[i] = crc
return table
| () |
39,704 | zipfile36 | _UpdateKeys | null | def _UpdateKeys(self, c):
self.key0 = self._crc32(c, self.key0)
self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
self.key1 = (self.key1 * 134775813 + 1) & 4294967295
self.key2 = self._crc32((self.key1 >> 24) & 255, self.key2)
| (self, c) |
39,705 | zipfile36 | __call__ | Decrypt a single character. | def __call__(self, c):
"""Decrypt a single character."""
assert isinstance(c, int)
k = self.key2 | 2
c = c ^ (((k * (k^1)) >> 8) & 255)
self._UpdateKeys(c)
return c
| (self, c) |
39,706 | zipfile36 | __init__ | null | def __init__(self, pwd):
if _ZipDecrypter.crctable is None:
_ZipDecrypter.crctable = _ZipDecrypter._GenerateCRCTable()
self.key0 = 305419896
self.key1 = 591751049
self.key2 = 878082192
for p in pwd:
self._UpdateKeys(p)
| (self, pwd) |
39,707 | zipfile36 | _crc32 | Compute the CRC32 primitive on one byte. | def _crc32(self, ch, crc):
"""Compute the CRC32 primitive on one byte."""
return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ch) & 0xff]
| (self, ch, crc) |
39,708 | zipfile36 | _ZipWriteFile | null | class _ZipWriteFile(io.BufferedIOBase):
def __init__(self, zf, zinfo, zip64):
self._zinfo = zinfo
self._zip64 = zip64
self._zipfile = zf
self._compressor = _get_compressor(zinfo.compress_type)
self._file_size = 0
self._compress_size = 0
self._crc = 0
@property
def _fileobj(self):
return self._zipfile.fp
def writable(self):
return True
def write(self, data):
nbytes = len(data)
self._file_size += nbytes
self._crc = crc32(data, self._crc)
if self._compressor:
data = self._compressor.compress(data)
self._compress_size += len(data)
self._fileobj.write(data)
return nbytes
def close(self):
super().close()
# Flush any data from the compressor, and update header info
if self._compressor:
buf = self._compressor.flush()
self._compress_size += len(buf)
self._fileobj.write(buf)
self._zinfo.compress_size = self._compress_size
else:
self._zinfo.compress_size = self._file_size
self._zinfo.CRC = self._crc
self._zinfo.file_size = self._file_size
# Write updated header info
if self._zinfo.flag_bits & 0x08:
# Write CRC and file sizes after the file data
fmt = '<LQQ' if self._zip64 else '<LLL'
self._fileobj.write(struct.pack(fmt, self._zinfo.CRC,
self._zinfo.compress_size, self._zinfo.file_size))
self._zipfile.start_dir = self._fileobj.tell()
else:
if not self._zip64:
if self._file_size > ZIP64_LIMIT:
raise RuntimeError('File size unexpectedly exceeded ZIP64 '
'limit')
if self._compress_size > ZIP64_LIMIT:
raise RuntimeError('Compressed size unexpectedly exceeded '
'ZIP64 limit')
# Seek backwards and write file header (which will now include
# correct CRC and file sizes)
# Preserve current position in file
self._zipfile.start_dir = self._fileobj.tell()
self._fileobj.seek(self._zinfo.header_offset)
self._fileobj.write(self._zinfo.FileHeader(self._zip64))
self._fileobj.seek(self._zipfile.start_dir)
self._zipfile._writing = False
# Successfully written: Add file to our caches
self._zipfile.filelist.append(self._zinfo)
self._zipfile.NameToInfo[self._zinfo.filename] = self._zinfo
| (zf, zinfo, zip64) |
39,709 | zipfile36 | __init__ | null | def __init__(self, zf, zinfo, zip64):
self._zinfo = zinfo
self._zip64 = zip64
self._zipfile = zf
self._compressor = _get_compressor(zinfo.compress_type)
self._file_size = 0
self._compress_size = 0
self._crc = 0
| (self, zf, zinfo, zip64) |
39,710 | zipfile36 | close | null | def close(self):
super().close()
# Flush any data from the compressor, and update header info
if self._compressor:
buf = self._compressor.flush()
self._compress_size += len(buf)
self._fileobj.write(buf)
self._zinfo.compress_size = self._compress_size
else:
self._zinfo.compress_size = self._file_size
self._zinfo.CRC = self._crc
self._zinfo.file_size = self._file_size
# Write updated header info
if self._zinfo.flag_bits & 0x08:
# Write CRC and file sizes after the file data
fmt = '<LQQ' if self._zip64 else '<LLL'
self._fileobj.write(struct.pack(fmt, self._zinfo.CRC,
self._zinfo.compress_size, self._zinfo.file_size))
self._zipfile.start_dir = self._fileobj.tell()
else:
if not self._zip64:
if self._file_size > ZIP64_LIMIT:
raise RuntimeError('File size unexpectedly exceeded ZIP64 '
'limit')
if self._compress_size > ZIP64_LIMIT:
raise RuntimeError('Compressed size unexpectedly exceeded '
'ZIP64 limit')
# Seek backwards and write file header (which will now include
# correct CRC and file sizes)
# Preserve current position in file
self._zipfile.start_dir = self._fileobj.tell()
self._fileobj.seek(self._zinfo.header_offset)
self._fileobj.write(self._zinfo.FileHeader(self._zip64))
self._fileobj.seek(self._zipfile.start_dir)
self._zipfile._writing = False
# Successfully written: Add file to our caches
self._zipfile.filelist.append(self._zinfo)
self._zipfile.NameToInfo[self._zinfo.filename] = self._zinfo
| (self) |
39,711 | zipfile36 | writable | null | def writable(self):
return True
| (self) |
39,712 | zipfile36 | write | null | def write(self, data):
nbytes = len(data)
self._file_size += nbytes
self._crc = crc32(data, self._crc)
if self._compressor:
data = self._compressor.compress(data)
self._compress_size += len(data)
self._fileobj.write(data)
return nbytes
| (self, data) |
39,713 | zipfile36 | _check_compression | null | def _check_compression(compression):
if compression == ZIP_STORED:
pass
elif compression == ZIP_DEFLATED:
if not zlib:
raise RuntimeError(
"Compression requires the (missing) zlib module")
elif compression == ZIP_BZIP2:
if not bz2:
raise RuntimeError(
"Compression requires the (missing) bz2 module")
elif compression == ZIP_LZMA:
if not lzma:
raise RuntimeError(
"Compression requires the (missing) lzma module")
else:
raise NotImplementedError("That compression method is not supported")
| (compression) |
39,714 | zipfile36 | _check_zipfile | null | def _check_zipfile(fp):
try:
if _EndRecData(fp):
return True # file has correct magic number
except OSError:
pass
return False
| (fp) |
39,715 | zipfile36 | _get_compressor | null | def _get_compressor(compress_type):
if compress_type == ZIP_DEFLATED:
return zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
zlib.DEFLATED, -15)
elif compress_type == ZIP_BZIP2:
return bz2.BZ2Compressor()
elif compress_type == ZIP_LZMA:
return LZMACompressor()
else:
return None
| (compress_type) |
39,716 | zipfile36 | _get_decompressor | null | def _get_decompressor(compress_type):
if compress_type == ZIP_STORED:
return None
elif compress_type == ZIP_DEFLATED:
return zlib.decompressobj(-15)
elif compress_type == ZIP_BZIP2:
return bz2.BZ2Decompressor()
elif compress_type == ZIP_LZMA:
return LZMADecompressor()
else:
descr = compressor_names.get(compress_type)
if descr:
raise NotImplementedError("compression type %d (%s)" % (compress_type, descr))
else:
raise NotImplementedError("compression type %d" % (compress_type,))
| (compress_type) |
39,722 | zipfile36 | is_zipfile | Quickly see if a file is a ZIP file by checking the magic number.
The filename argument may be a file or file-like object too.
| def is_zipfile(filename):
"""Quickly see if a file is a ZIP file by checking the magic number.
The filename argument may be a file or file-like object too.
"""
result = False
try:
if hasattr(filename, "read"):
result = _check_zipfile(fp=filename)
else:
with open(filename, "rb") as fp:
result = _check_zipfile(fp)
except OSError:
pass
return result
| (filename) |
39,724 | zipfile36 | main | null | def main(args = None):
import textwrap
USAGE=textwrap.dedent("""\
Usage:
zipfile.py -l zipfile.zip # Show listing of a zipfile
zipfile.py -t zipfile.zip # Test if a zipfile is valid
zipfile.py -e zipfile.zip target # Extract zipfile into target dir
zipfile.py -c zipfile.zip src ... # Create zipfile from sources
""")
if args is None:
args = sys.argv[1:]
if not args or args[0] not in ('-l', '-c', '-e', '-t'):
print(USAGE, file=sys.stderr)
sys.exit(1)
if args[0] == '-l':
if len(args) != 2:
print(USAGE, file=sys.stderr)
sys.exit(1)
with ZipFile(args[1], 'r') as zf:
zf.printdir()
elif args[0] == '-t':
if len(args) != 2:
print(USAGE, file=sys.stderr)
sys.exit(1)
with ZipFile(args[1], 'r') as zf:
badfile = zf.testzip()
if badfile:
print("The following enclosed file is corrupted: {!r}".format(badfile))
print("Done testing")
elif args[0] == '-e':
if len(args) != 3:
print(USAGE, file=sys.stderr)
sys.exit(1)
with ZipFile(args[1], 'r') as zf:
zf.extractall(args[2])
elif args[0] == '-c':
if len(args) < 3:
print(USAGE, file=sys.stderr)
sys.exit(1)
def addToZip(zf, path, zippath):
if os.path.isfile(path):
zf.write(path, zippath, ZIP_DEFLATED)
elif os.path.isdir(path):
if zippath:
zf.write(path, zippath)
for nm in os.listdir(path):
addToZip(zf,
os.path.join(path, nm), os.path.join(zippath, nm))
# else: ignore
with ZipFile(args[1], 'w') as zf:
for path in args[2:]:
zippath = os.path.basename(path)
if not zippath:
zippath = os.path.basename(os.path.dirname(path))
if zippath in ('', os.curdir, os.pardir):
zippath = ''
addToZip(zf, path, zippath)
| (args=None) |
39,734 | django.utils.version | get_version | Return a PEP 440-compliant version number from VERSION. | def get_version(version=None):
"""Return a PEP 440-compliant version number from VERSION."""
version = get_complete_version(version)
# Now build the two parts of the version number:
# main = X.Y[.Z]
# sub = .devN - for pre-alpha releases
# | {a|b|rc}N - for alpha, beta, and rc releases
main = get_main_version(version)
sub = ""
if version[3] == "alpha" and version[4] == 0:
git_changeset = get_git_changeset()
if git_changeset:
sub = ".dev%s" % git_changeset
elif version[3] != "final":
mapping = {"alpha": "a", "beta": "b", "rc": "rc"}
sub = mapping[version[3]] + str(version[4])
return main + sub
| (version=None) |
39,735 | django | setup |
Configure the settings (this happens as a side effect of accessing the
first setting), configure logging and populate the app registry.
Set the thread-local urlresolvers script prefix if `set_prefix` is True.
| def setup(set_prefix=True):
"""
Configure the settings (this happens as a side effect of accessing the
first setting), configure logging and populate the app registry.
Set the thread-local urlresolvers script prefix if `set_prefix` is True.
"""
from django.apps import apps
from django.conf import settings
from django.urls import set_script_prefix
from django.utils.log import configure_logging
configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
if set_prefix:
set_script_prefix(
"/" if settings.FORCE_SCRIPT_NAME is None else settings.FORCE_SCRIPT_NAME
)
apps.populate(settings.INSTALLED_APPS)
| (set_prefix=True) |
39,737 | holidays.utils | CountryHoliday |
Deprecated name for :py:func:`country_holidays`.
:meta private:
| def CountryHoliday(
country: str,
subdiv: Optional[str] = None,
years: Optional[Union[int, Iterable[int]]] = None,
expand: bool = True,
observed: bool = True,
prov: Optional[str] = None,
state: Optional[str] = None,
) -> HolidayBase:
"""
Deprecated name for :py:func:`country_holidays`.
:meta private:
"""
warnings.warn(
"CountryHoliday is deprecated, use country_holidays instead.", DeprecationWarning
)
return country_holidays(country, subdiv, years, expand, observed, prov, state)
| (country: str, subdiv: Optional[str] = None, years: Union[int, Iterable[int], NoneType] = None, expand: bool = True, observed: bool = True, prov: Optional[str] = None, state: Optional[str] = None) -> holidays.holiday_base.HolidayBase |
39,738 | holidays.registry | EntityLoader | Country and financial holidays entities lazy loader. | class EntityLoader:
"""Country and financial holidays entities lazy loader."""
__slots__ = ("entity", "entity_name", "module_name")
def __init__(self, path: str, *args, **kwargs) -> None:
"""Set up a lazy loader."""
if args:
raise TypeError(
"This is a python-holidays entity loader class. "
"For entity inheritance purposes please import a class you "
"want to derive from directly: e.g., "
"`from holidays.countries import Entity` or "
"`from holidays.financial import Entity`."
)
entity_path = path.split(".")
self.entity = None
self.entity_name = entity_path[-1]
self.module_name = ".".join(entity_path[0:-1])
super().__init__(*args, **kwargs)
def __call__(self, *args, **kwargs) -> HolidayBase:
"""Create a new instance of a lazy-loaded entity."""
cls = self.get_entity()
return cls(*args, **kwargs) # type: ignore[misc, operator]
def __getattr__(self, name: str) -> Optional[Any]:
"""Return attribute of a lazy-loaded entity."""
cls = self.get_entity()
return getattr(cls, name)
def __str__(self) -> str:
"""Return lazy loader object string representation."""
return (
f"A lazy loader for {self.get_entity()}. For inheritance please "
f"use the '{self.module_name}.{self.entity_name}' class directly."
)
def get_entity(self) -> Optional[HolidayBase]:
"""Return lazy-loaded entity."""
if self.entity is None:
self.entity = getattr(importlib.import_module(self.module_name), self.entity_name)
return self.entity
@staticmethod
def _get_entity_codes(
container: RegistryDict,
entity_length: Union[int, Iterable[int]],
include_aliases: bool = True,
) -> Iterable[str]:
entity_length = {entity_length} if isinstance(entity_length, int) else set(entity_length)
for entities in container.values():
for entity in entities:
if len(entity) in entity_length:
yield entity
# Assuming that the alpha-2 code goes first.
if not include_aliases:
break
@staticmethod
def get_country_codes(include_aliases: bool = True) -> Iterable[str]:
"""Get supported country codes.
:param include_aliases:
Whether to include entity aliases (e.g. UK for GB).
"""
return EntityLoader._get_entity_codes(COUNTRIES, 2, include_aliases)
@staticmethod
def get_financial_codes(include_aliases: bool = True) -> Iterable[str]:
"""Get supported financial codes.
:param include_aliases:
Whether to include entity aliases(e.g. TAR for ECB, XNYS for NYSE).
"""
return EntityLoader._get_entity_codes(FINANCIAL, (3, 4), include_aliases)
@staticmethod
def load(prefix: str, scope: Dict) -> None:
"""Load country or financial entities."""
entity_mapping = COUNTRIES if prefix == "countries" else FINANCIAL
for module, entities in entity_mapping.items():
scope.update(
{
entity: EntityLoader(f"holidays.{prefix}.{module}.{entity}")
for entity in entities
}
)
| (path: str, *args, **kwargs) -> None |
39,739 | holidays.registry | __call__ | Create a new instance of a lazy-loaded entity. | def __call__(self, *args, **kwargs) -> HolidayBase:
"""Create a new instance of a lazy-loaded entity."""
cls = self.get_entity()
return cls(*args, **kwargs) # type: ignore[misc, operator]
| (self, *args, **kwargs) -> holidays.holiday_base.HolidayBase |
39,740 | holidays.registry | __getattr__ | Return attribute of a lazy-loaded entity. | def __getattr__(self, name: str) -> Optional[Any]:
"""Return attribute of a lazy-loaded entity."""
cls = self.get_entity()
return getattr(cls, name)
| (self, name: str) -> Optional[Any] |
39,741 | holidays.registry | __init__ | Set up a lazy loader. | def __init__(self, path: str, *args, **kwargs) -> None:
"""Set up a lazy loader."""
if args:
raise TypeError(
"This is a python-holidays entity loader class. "
"For entity inheritance purposes please import a class you "
"want to derive from directly: e.g., "
"`from holidays.countries import Entity` or "
"`from holidays.financial import Entity`."
)
entity_path = path.split(".")
self.entity = None
self.entity_name = entity_path[-1]
self.module_name = ".".join(entity_path[0:-1])
super().__init__(*args, **kwargs)
| (self, path: str, *args, **kwargs) -> NoneType |
39,742 | holidays.registry | __str__ | Return lazy loader object string representation. | def __str__(self) -> str:
"""Return lazy loader object string representation."""
return (
f"A lazy loader for {self.get_entity()}. For inheritance please "
f"use the '{self.module_name}.{self.entity_name}' class directly."
)
| (self) -> str |
39,743 | holidays.registry | _get_entity_codes | null | @staticmethod
def _get_entity_codes(
container: RegistryDict,
entity_length: Union[int, Iterable[int]],
include_aliases: bool = True,
) -> Iterable[str]:
entity_length = {entity_length} if isinstance(entity_length, int) else set(entity_length)
for entities in container.values():
for entity in entities:
if len(entity) in entity_length:
yield entity
# Assuming that the alpha-2 code goes first.
if not include_aliases:
break
| (container: Dict[str, Tuple[str, ...]], entity_length: Union[int, Iterable[int]], include_aliases: bool = True) -> Iterable[str] |
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