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from deep_translator.constants import BASE_URLS, GOOGLE_LANGUAGES_TO_CODES
from deep_translator.exceptions import NotValidPayload, TranslationNotFound, LanguageNotSupportedException
from deep_translator.parent import BaseTranslator
import requests
class MyMemoryTranslator(BaseTranslator):
"""
class that uses google translate to translate texts
"""
_languages = GOOGLE_LANGUAGES_TO_CODES
supported_languages = list(_languages.keys())
def __init__(self, source="auto", target="en", **kwargs):
"""
@param source: source language to translate from
@param target: target language to translate to
"""
self.__base_url = BASE_URLS.get("MYMEMORY")
if self.is_language_supported(source, target):
self._source, self._target = self._map_language_to_code(source.lower(), target.lower())
self._source = self._source if self._source != 'auto' else 'Lao'
print(self._source, self._target)
self.email = kwargs.get('email', None)
super(MyMemoryTranslator, self).__init__(base_url=self.__base_url,
source=self._source,
target=self._target,
payload_key='q',
langpair='{}|{}'.format(self._source, self._target))
@staticmethod
def get_supported_languages(as_dict=False):
return MyMemoryTranslator.supported_languages if not as_dict else MyMemoryTranslator._languages
def _map_language_to_code(self, *languages):
"""
@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 self._languages.values() or language == 'auto':
yield language
elif language in self._languages.keys():
yield self._languages[language]
else:
raise LanguageNotSupportedException(language)
def is_language_supported(self, *languages):
for lang in languages:
if lang != 'auto' and lang not in self._languages.keys():
if lang != 'auto' and lang not in self._languages.values():
raise LanguageNotSupportedException(lang)
return True
def translate(self, text, return_all=False, **kwargs):
"""
main function that uses google translate to translate a text
@param text: desired text to translate
@param return_all: set True to return all synonyms
@return: str: translated text
"""
if self._validate_payload(text):
text = text.strip()
if self.payload_key:
self._url_params[self.payload_key] = text
if self.email:
self._url_params['de'] = self.email
response = requests.get(self.__base_url,
params=self._url_params,
headers=self.headers)
data = response.json()
if not data:
TranslationNotFound(text)
translation = data.get('responseData').get('translatedText')
if translation:
return translation
elif not translation:
all_matches = data.get('matches')
matches = (match['translation'] for match in all_matches)
next_match = next(matches)
return next_match if not return_all else list(all_matches)
def translate_sentences(self, sentences=None, **kwargs):
"""
translate many sentences together. This makes sense if you have sentences with different languages
and you want to translate all to unified language. This is handy because it detects
automatically the language of each sentence and then translate it.
@param sentences: list of sentences to translate
@return: list of all translated sentences
"""
if not sentences:
raise NotValidPayload(sentences)
translated_sentences = []
try:
for sentence in sentences:
translated = self.translate(text=sentence, **kwargs)
translated_sentences.append(translated)
return translated_sentences
except Exception as e:
raise e
if __name__ == '__main__':
m = MyMemoryTranslator("english", "french").translate("good")
print(m)
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