googletranslator“无法解码任何 JSON 对象”

Question

使用谷歌翻译翻译网站内容我发现错误“无法解码 JSON 对象”。代码如下：

import requests
from dragnet import extract_content
from googletrans import Translator

url = "https://bitcoin-bitcoin.themedia.jp/posts/4222377/"
r = requests.get(url)
content = extract_content(r.content)
translator = Translator()
text = translator.translate(content, dest='en').text

输出错误：

Traceback (most recent call last):
  File "test.py", line 9, in <module>
    text = translator.translate(content, dest='en').text
  File "/usr/local/lib/python2.7/dist-packages/googletrans/client.py", line 132, in translate
    data = self._translate(text, dest, src)
  File "/usr/local/lib/python2.7/dist-packages/googletrans/client.py", line 63, in _translate
    data = utils.format_json(r.text)
  File "/usr/local/lib/python2.7/dist-packages/googletrans/utils.py", line 62, in format_json
    converted = legacy_format_json(original)
  File "/usr/local/lib/python2.7/dist-packages/googletrans/utils.py", line 54, in legacy_format_json
    converted = json.loads(text)
  File "/usr/lib/python2.7/json/__init__.py", line 339, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/json/decoder.py", line 364, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python2.7/json/decoder.py", line 382, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

Answer 1

根据错误，您传递的content 变量不是预期的格式。使用print(type(content)) 和print(content) 了解您传递的信息是什么以及它是否是预期的类型。

您使用的库不是 Google 官方库。查找official example here。确实，您无法翻译整个网站并且没有实施等效的解决方案。您需要阅读该页面并充分了解它；或在您的情况下使用 Dragnet 预处理 content。

在下面找到一个用于翻译 API 的 Python 客户端库示例：

# Imports the Google Cloud client library
from google.cloud import translate

# Instantiates a client
translate_client = translate.Client()

# The text to translate
text = u'Hello, world!'
# The target language
target = 'ru'

# Translates some text into Russian
translation = translate_client.translate(
    text,
    target_language=target)

print(u'Text: {}'.format(text))
print(u'Translation: {}'.format(translation['translatedText']))