在 python 中使用 textblob 进行翻译的问题 - textblob.exceptions答案

【问题标题】：Problem to translate with textblob in python - textblob.exceptions在 python 中使用 textblob 进行翻译的问题 - textblob.exceptions
【发布时间】：2020-05-18 14:53:18
【问题描述】：

我正在尝试使用 Pypdf2 从 pdf 中提取文本并使用 Textblob 进行翻译。

import PyPDF2 as pdf
from docx import Document
from textblob import TextBlob

Arquivo = 'teste.pdf'
lgout = input('\nPara qual língua traduzir? ex: pt, en, es: ')
lgin = input('\nQual língua é o documento? ex: pt, en, es: ')

with open(Arquivo, mode='rb') as f:
    reader = pdf.PdfFileReader(f)
    npages = int(reader.numPages) -1

    ret = 0
    while ret <= npages:
        page = reader.getPage(ret)
        pagext = str(page.extractText())
        blob = TextBlob(pagext)
        text_trans = (blob.translate(from_lang=lgin,to = lgout))
        doc = Document()
        doc.add_paragraph(str(text_trans))
        doc.save('Doc teste' + str(ret) + '.docx')
        ret +=1
    else:
        print("Documento convertido")

但是当我运行脚本时，我得到了错误

Traceback (most recent call last):
  File "/Users/Pedrovhz/Desktop/Estudos/Python/Python Translator/tradutor_pdf.py", line 18, in <module>
    text_trans = (blob.translate(from_lang=lginout,to = lgoutpu))
  File "/anaconda3/lib/python3.7/site-packages/textblob/blob.py", line 547, in translate
    from_lang=from_lang, to_lang=to))
  File "/anaconda3/lib/python3.7/site-packages/textblob/translate.py", line 61, in translate
    self._validate_translation(source, result)
  File "/anaconda3/lib/python3.7/site-packages/textblob/translate.py", line 85, in _validate_translation
    raise NotTranslated('Translation API returned the input string unchanged.')
textblob.exceptions.NotTranslated: Translation API returned the input string unchanged.

我不知道我做错了什么，谢谢帮助！

【问题讨论】：

标签： python anaconda pypdf2 textblob

【解决方案1】：

我认为您应该查看此链接textblob.exceptions.NotTranslated: Translation API returned the input string unchanged

作为一种解决方法，您可以使用 try-catch 块或 if-else 通过检测语言并进行翻译。我写了一个示例 sn-p

    if blob.detect_language() == 'es':
        translated = blob.translate(from_lang='es',to='en')
        print(translated)
    elif blob.detect_language() == 'de':
        translated = blob.translate(from_lang='de',to='en')
        print(translated)
    else:
        print("not translated")

如果它不适合你，请告诉我。

【讨论】：