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bazarr/libs/deep_translator/yandex.py

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"""
Yandex translator API
"""
__copyright__ = "Copyright (C) 2020 Nidhal Baccouri"
import os
from typing import List, Optional
import requests
from deep_translator.base import BaseTranslator
from deep_translator.constants import BASE_URLS, YANDEX_ENV_VAR
from deep_translator.exceptions import (
ApiKeyException,
RequestError,
ServerException,
TooManyRequests,
TranslationNotFound,
)
from deep_translator.validate import is_input_valid, request_failed
class YandexTranslator(BaseTranslator):
"""
class that wraps functions, which use the yandex translator
under the hood to translate word(s)
"""
def __init__(
self,
source: str = "en",
target: str = "de",
api_key: Optional[str] = os.getenv(YANDEX_ENV_VAR, None),
**kwargs
):
"""
@param api_key: your yandex api key
"""
if not api_key:
raise ApiKeyException(YANDEX_ENV_VAR)
self.api_key = api_key
self.api_version = "v1.5"
self.api_endpoints = {
"langs": "getLangs",
"detect": "detect",
"translate": "translate",
}
super().__init__(
base_url=BASE_URLS.get("YANDEX"),
source=source,
target=target,
**kwargs
)
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: Optional[dict] = 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 request_failed(status_code=response.status_code):
raise ServerException(response.status_code)
return data.get("dirs")
def detect(self, text: str, proxies: Optional[dict] = 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, text: str, proxies: Optional[dict] = None, **kwargs
) -> str:
if is_input_valid(text):
params = {
"text": text,
"format": "plain",
"lang": self._target
if self._source == "auto"
else "{}-{}".format(self._source, self._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, path: str, **kwargs) -> str:
"""
translate from a file
@param path: path to file
@return: translated text
"""
return self._translate_file(path, **kwargs)
def translate_batch(self, batch: List[str], **kwargs) -> List[str]:
"""
translate a batch of texts
@param batch: list of texts to translate
@return: list of translations
"""
return self._translate_batch(batch, **kwargs)