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我一直认为__file__变量总是给你当前的文件名,但这似乎并不完全是它的作用。因为如果我认为这是真的,我一直面临着一个错误。

有人告诉我“__file__那是指搜索的最后一个模块”这似乎更准确,但我想知道__file__真正应该做什么。

我找不到 Python 文档中提到的任何具体内容。很多地方似乎都提到了它,但不是很清楚。

http://docs.python.org/2/c-api/import.html?highlight=__file__

http://docs.python.org/2/c-api/module.html?highlight=__file__

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 __file__ is the pathname of the file from which the module was loaded, if it was loaded from a file. The __file__ attribute is not present
 for C modules that are statically linked into the interpreter; for
 extension modules loaded dynamically from a shared library, it is the
 pathname of the shared library file.

从这里: http: //mail.python.org/pipermail/python-dev/2010-February/097461.html

于 2013-07-02T17:07:19.033 回答