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from deep_translator.constants import BASE_URLS, LINGUEE_LANGUAGES_TO_CODES, LINGUEE_CODE_TO_LANGUAGE
from deep_translator.exceptions import LanguageNotSupportedException, ElementNotFoundInGetRequest, NotValidPayload, NotValidLength
from deep_translator.parent import BaseTranslator
from bs4 import BeautifulSoup
import requests
from requests.utils import requote_uri
class LingueeTranslator(BaseTranslator):
_languages = LINGUEE_LANGUAGES_TO_CODES
supported_languages = list(_languages.keys())
def __init__(self, source, target="en"):
"""
@param source: source language to translate from
@param target: target language to translate to
"""
self.__base_url = BASE_URLS.get("LINGUEE")
if self.is_language_supported(source, target):
self._source, self._target = self._map_language_to_code(source.lower(), target.lower())
super().__init__(base_url=self.__base_url,
source=self._source,
target=self._target,
element_tag='a',
element_query={'class': 'dictLink featured'},
payload_key=None, # key of text in the url
)
@staticmethod
def get_supported_languages(as_dict=False):
return LingueeTranslator.supported_languages if not as_dict else LingueeTranslator._languages
def _map_language_to_code(self, *languages, **kwargs):
"""
@param language: type of language
@return: mapped value of the language or raise an exception if the language is not supported
"""
for language in languages:
if language in LINGUEE_LANGUAGES_TO_CODES.values():
yield LINGUEE_CODE_TO_LANGUAGE[language]
elif language in LINGUEE_LANGUAGES_TO_CODES.keys():
yield language
else:
raise LanguageNotSupportedException(language)
def is_language_supported(self, *languages, **kwargs):
for lang in languages:
if lang not in LINGUEE_LANGUAGES_TO_CODES.keys():
if lang not in LINGUEE_LANGUAGES_TO_CODES.values():
raise LanguageNotSupportedException(lang)
return True
def translate(self, word, **kwargs):
if self._validate_payload(word):
# %s-%s/translation/%s.html
url = "{}{}-{}/translation/{}.html".format(self.__base_url, self._source, self._target, word)
url = requote_uri(url)
response = requests.get(url)
soup = BeautifulSoup(response.text, 'html.parser')
elements = soup.find_all(self._element_tag, self._element_query)
if not elements:
raise ElementNotFoundInGetRequest(elements)
if 'return_all' in kwargs and kwargs.get('return_all'):
return [el.get_text(strip=True) for el in elements]
else:
return elements[0].get_text(strip=True)
def translate_words(self, words, **kwargs):
if not words:
raise NotValidPayload(words)
translated_words = []
for word in words:
translated_words.append(self.translate(payload=word))
return translated_words
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