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import requests
from .constants import BASE_URLS, QCRI_LANGUAGE_TO_CODE
from .exceptions import (ServerException, TranslationNotFound)
class QCRI(object):
"""
class that wraps functions, which use the QRCI translator under the hood to translate word(s)
"""
def __init__(self, api_key=None, source="en", target="en", **kwargs):
"""
@param api_key: your qrci api key. Get one for free here https://mt.qcri.org/api/v1/ref
"""
if not api_key:
raise ServerException(401)
self.__base_url = BASE_URLS.get("QCRI")
self.source = source
self.target = target
self.api_key = api_key
self.api_endpoints = {
"get_languages": "getLanguagePairs",
"get_domains": "getDomains",
"translate": "translate",
}
self.params = {
"key": self.api_key
}
def _get(self, endpoint, params=None, return_text=True):
if not params:
params = self.params
try:
res = requests.get(self.__base_url.format(endpoint=self.api_endpoints[endpoint]), params=params)
return res.text if return_text else res
except Exception as e:
raise e
def get_supported_languages(self, **kwargs):
# Have no use for this as the format is not what we need
# Save this for whenever
pairs = self._get("get_languages")
# Using a this one instead
return QCRI_LANGUAGE_TO_CODE
@property
def languages(self):
return self.get_supported_languages()
def get_domains(self):
domains = self._get("get_domains")
return domains
@property
def domains(self):
return self.get_domains()
def translate(self, text, domain, **kwargs):
params = {
"key": self.api_key,
"langpair": "{}-{}".format(self.source, self.target),
"domain": domain,
"text": text
}
try:
response = self._get("translate", params=params, return_text=False)
except ConnectionError:
raise ServerException(503)
else:
if response.status_code != 200:
ServerException(response.status_code)
else:
res = response.json()
translation = res.get("translatedText")
if not translation:
raise TranslationNotFound(text)
return translation
def translate_batch(self, batch, domain, **kwargs):
"""
translate a batch of texts
@domain: domain
@param batch: list of texts to translate
@return: list of translations
"""
return [self.translate(domain, text, **kwargs) for text in batch]
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