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114 lines
3.5 KiB
114 lines
3.5 KiB
"""
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mymemory translator API
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"""
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__copyright__ = "Copyright (C) 2020 Nidhal Baccouri"
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from typing import List, Optional, Union
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import requests
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from deep_translator.base import BaseTranslator
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from deep_translator.constants import BASE_URLS, MY_MEMORY_LANGUAGES_TO_CODES
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from deep_translator.exceptions import (
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RequestError,
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TooManyRequests,
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TranslationNotFound,
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)
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from deep_translator.validate import is_empty, is_input_valid, request_failed
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class MyMemoryTranslator(BaseTranslator):
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"""
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class that uses the mymemory translator to translate texts
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"""
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def __init__(
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self,
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source: str = "auto",
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target: str = "en",
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proxies: Optional[dict] = None,
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**kwargs,
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):
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"""
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@param source: source language to translate from
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@param target: target language to translate to
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"""
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self.proxies = proxies
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self.email = kwargs.get("email", None)
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super().__init__(
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base_url=BASE_URLS.get("MYMEMORY"),
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source=source,
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target=target,
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payload_key="q",
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languages=MY_MEMORY_LANGUAGES_TO_CODES,
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)
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def translate(
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self, text: str, return_all: bool = False, **kwargs
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) -> Union[str, List[str]]:
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"""
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function that uses the mymemory translator to translate a text
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@param text: desired text to translate
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@type text: str
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@param return_all: set to True to return all synonym/similars of the translated text
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@return: str or list
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"""
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if is_input_valid(text, max_chars=500):
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text = text.strip()
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if self._same_source_target() or is_empty(text):
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return text
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self._url_params["langpair"] = f"{self._source}|{self._target}"
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if self.payload_key:
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self._url_params[self.payload_key] = text
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if self.email:
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self._url_params["de"] = self.email
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response = requests.get(
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self._base_url, params=self._url_params, proxies=self.proxies
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)
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if response.status_code == 429:
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raise TooManyRequests()
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if request_failed(status_code=response.status_code):
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raise RequestError()
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data = response.json()
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if not data:
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TranslationNotFound(text)
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response.close()
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translation = data.get("responseData").get("translatedText")
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all_matches = data.get("matches", [])
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if translation:
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if not return_all:
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return translation
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else:
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# append translation at the start of the matches list
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return [translation] + list(all_matches)
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elif not translation:
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matches = (match["translation"] for match in all_matches)
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next_match = next(matches)
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return next_match if not return_all else list(all_matches)
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def translate_file(self, path: str, **kwargs) -> str:
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"""
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translate directly from file
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@param path: path to the target file
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@type path: str
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@param kwargs: additional args
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@return: str
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"""
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return self._translate_file(path, **kwargs)
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def translate_batch(self, batch: List[str], **kwargs) -> List[str]:
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"""
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translate a list of texts
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@param batch: list of texts you want to translate
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@return: list of translations
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"""
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return self._translate_batch(batch, **kwargs)
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