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136 lines
4.1 KiB
136 lines
4.1 KiB
"""
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Yandex translator API
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"""
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import requests
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from .constants import BASE_URLS
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from .exceptions import (RequestError, ServerException, TranslationNotFound, TooManyRequests)
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class YandexTranslator(object):
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"""
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class that wraps functions, which use the yandex translator under the hood to translate word(s)
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"""
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def __init__(self, api_key=None, source="en", target="de", **kwargs):
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"""
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@param api_key: your yandex api key
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"""
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if not api_key:
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raise ServerException(401)
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self.__base_url = BASE_URLS.get("YANDEX")
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self.source = source
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self.target = target
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self.api_key = api_key
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self.api_version = "v1.5"
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self.api_endpoints = {
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"langs": "getLangs",
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"detect": "detect",
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"translate": "translate",
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}
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@staticmethod
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def get_supported_languages(as_dict=False, **kwargs):
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""" this method is just for consistency."""
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return """ this method is just for consistency. You need to create an instance of yandex and access
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supported languages using the languages property or call _get_supported_languages
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"""
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def _get_supported_languages(self):
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return set(x.split("-")[0] for x in self.dirs)
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@property
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def languages(self):
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return self.get_supported_languages()
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@property
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def dirs(self, proxies=None):
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try:
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url = self.__base_url.format(version=self.api_version, endpoint="getLangs")
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print("url: ", url)
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response = requests.get(url, params={"key": self.api_key}, proxies=proxies)
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except requests.exceptions.ConnectionError:
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raise ServerException(503)
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else:
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data = response.json()
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if response.status_code != 200:
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raise ServerException(response.status_code)
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return data.get("dirs")
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def detect(self, text, proxies=None):
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response = None
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params = {
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"text": text,
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"format": "plain",
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"key": self.api_key,
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}
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try:
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url = self.__base_url.format(version=self.api_version, endpoint="detect")
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response = requests.post(url, data=params, proxies=proxies)
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except RequestError:
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raise
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except ConnectionError:
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raise ServerException(503)
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except ValueError:
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raise ServerException(response.status_code)
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else:
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response = response.json()
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language = response['lang']
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status_code = response['code']
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if status_code != 200:
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raise RequestError()
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elif not language:
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raise ServerException(501)
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return language
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def translate(self, text, proxies=None, **kwargs):
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params = {
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"text": text,
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"format": "plain",
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"lang": self.target if self.source == "auto" else "{}-{}".format(self.source, self.target),
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"key": self.api_key
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}
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try:
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url = self.__base_url.format(version=self.api_version, endpoint="translate")
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response = requests.post(url, data=params, proxies=proxies)
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except ConnectionError:
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raise ServerException(503)
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else:
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response = response.json()
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if response['code'] == 429:
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raise TooManyRequests()
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if response['code'] != 200:
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raise ServerException(response['code'])
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if not response['text']:
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raise TranslationNotFound()
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return response['text']
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def translate_file(self, path, **kwargs):
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"""
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translate from a file
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@param path: path to file
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@return: translated text
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"""
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try:
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with open(path) as f:
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text = f.read()
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return self.translate(text)
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except Exception as e:
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raise e
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def translate_batch(self, batch, **kwargs):
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"""
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translate a batch of texts
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@param batch: list of texts to translate
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@return: list of translations
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"""
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return [self.translate(text, **kwargs) for text in batch]
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