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bazarr/libs/deep_translator/pons.py
2022-11-07 13:08:27 -05:00

107 lines
3.3 KiB
Python

"""
pons translator API
"""
from typing import List, Optional, Union
import requests
from bs4 import BeautifulSoup
from requests.utils import requote_uri
from deep_translator.base import BaseTranslator
from deep_translator.constants import BASE_URLS, PONS_CODES_TO_LANGUAGES
from deep_translator.exceptions import (
ElementNotFoundInGetRequest,
NotValidPayload,
RequestError,
TooManyRequests,
TranslationNotFound,
)
from deep_translator.validate import is_empty, is_input_valid
class PonsTranslator(BaseTranslator):
"""
class that uses PONS translator to translate words
"""
def __init__(
self, source: str, target: str = "en", proxies: Optional[dict] = None, **kwargs
):
"""
@param source: source language to translate from
@param target: target language to translate to
"""
self.proxies = proxies
super().__init__(
base_url=BASE_URLS.get("PONS"),
languages=PONS_CODES_TO_LANGUAGES,
source=source,
target=target,
payload_key=None,
element_tag="div",
element_query={"class": "target"},
**kwargs,
)
def translate(
self, word: str, return_all: bool = False, **kwargs
) -> Union[str, List[str]]:
"""
function that uses PONS to translate a word
@param word: word to translate
@type word: str
@param return_all: set to True to return all synonym of the translated word
@type return_all: bool
@return: str: translated word
"""
if is_input_valid(word, max_chars=50):
if self._same_source_target() or is_empty(word):
return word
url = f"{self._base_url}{self._source}-{self._target}/{word}"
url = requote_uri(url)
response = requests.get(url, proxies=self.proxies)
if response.status_code == 429:
raise TooManyRequests()
if response.status_code != 200:
raise RequestError()
soup = BeautifulSoup(response.text, "html.parser")
elements = soup.findAll(self._element_tag, self._element_query)
response.close()
if not elements:
raise ElementNotFoundInGetRequest(word)
filtered_elements = []
for el in elements:
temp = ""
for e in el.findAll("a"):
temp += e.get_text() + " "
filtered_elements.append(temp)
if not filtered_elements:
raise ElementNotFoundInGetRequest(word)
word_list = [word for word in filtered_elements if word and len(word) > 1]
if not word_list:
raise TranslationNotFound(word)
return word_list if return_all else word_list[0]
def translate_words(self, words: List[str], **kwargs) -> List[str]:
"""
translate a batch of words together by providing them in a list
@param words: list of words you want to translate
@param kwargs: additional args
@return: list of translated words
"""
if not words:
raise NotValidPayload(words)
translated_words = []
for word in words:
translated_words.append(self.translate(word=word, **kwargs))
return translated_words