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我正在使用IMDbPY从 IMDb 检索数据。我得到了正确的结果，一切看起来都很好，除了一件事：无论我做什么，我都会收到警告。结果很好，但它们仅在出现一长串警告并且有时出现错误之后才会出现。

例如：下面的代码应该打印Resevior Dogs (1992)：

import imdb
db = imdb.IMDb()
movie_obj = db.search_movie('pulp fiction')[0]
db.update(movie_obj)
print movie_obj['long imdb canonical title']

它会这样做，但不会在以下警告和错误之前：

2011-03-18 00:33:11,490 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:459: unable to use "lxml": No module named lxml.html
2011-03-18 00:33:11,507 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:450: falling back to "beautifulsoup"
2011-03-18 00:33:13,483 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:459: unable to use "lxml": No module named lxml.html
2011-03-18 00:33:13,483 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:450: falling back to "beautifulsoup"
2011-03-18 00:33:15,137 ERROR [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:566: DOMHTMLMovieParser: caught exception extracting XPath "//div[@id='tn15title']//span[starts-with(text(), 'TV series')]"
Traceback (most recent call last):
  File "C:\Python27\lib\site-packages\imdb\parser\http\utils.py", line 555, in xpath
    xpath_result = element.xpath(path)
  File "C:\Python27\lib\site-packages\imdb\parser\http\bsouplxml\etree.py", line 57, in xpath
    return path.apply(node)
  File "C:\Python27\lib\site-packages\imdb\parser\http\bsouplxml\bsoupxpath.py", line 113, in apply
    nodes = step.apply(nodes)
  File "C:\Python27\lib\site-packages\imdb\parser\http\bsouplxml\bsoupxpath.py", line 287, in apply
    found = filter(checker, found)
  File "C:\Python27\lib\site-packages\imdb\parser\http\bsouplxml\bsoupxpath.py", line 331, in __call__
    return self.__filter(node)
  File "C:\Python27\lib\site-packages\imdb\parser\http\bsouplxml\bsoupxpath.py", line 360, in __starts_with
    first = node.contents[0]
IndexError: list index out of range
2011-03-18 00:33:16,785 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:459: unable to use "lxml": No module named lxml.html
2011-03-18 00:33:16,785 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:450: falling back to "beautifulsoup"
2011-03-18 00:33:16,849 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:459: unable to use "lxml": No module named lxml.html
2011-03-18 00:33:16,849 WARNING [imdbpy.parser.http.domparser] C:\Python27\lib\site-packages\imdb\parser\http\utils.py:450: falling back to "beautifulsoup"

为什么我会得到这个？难道我做错了什么？

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1 回答 1

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嗯，这是不言自明的：

无法使用“lxml”：没有名为 lxml.html 的模块

你可以这样做来检查模块是否存在吗？

  1. 在终端或命令提示符中，运行python.
  2. 发布第一行的输出（例如Python 2.6.6 (r266...）。
  3. 在 shell 中，输入import lxml.
  4. 接下来，尝试import lxml.html。

对我来说，这就是发生的事情：

blender@desktop:~$ python
Python 2.6.6 (r266:84292, Sep 15 2010, 16:22:56) 
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import lxml
>>> import lxml.html
>>>

我已经安装了模块，所以我没有得到任何输出（它已成功导入）。

于 2011-03-17T22:46:24.370 回答