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