Python 的 sys.path 是从哪里初始化的? [英] Where is Python's sys.path initialized from?

问题描述

Python 的 sys.path 是从哪里初始化的?

Where is Python's sys.path initialized from?

UPD:Python 在引用 PYTHONPATH 之前添加了一些路径:

UPD: Python is adding some paths before refering to PYTHONPATH:

    >>> import sys
    >>> from pprint import pprint as p
    >>> p(sys.path)
    ['',
     'C:\Python25\lib\site-packages\setuptools-0.6c9-py2.5.egg',
     'C:\Python25\lib\site-packages\orbited-0.7.8-py2.5.egg',
     'C:\Python25\lib\site-packages\morbid-0.8.6.1-py2.5.egg',
     'C:\Python25\lib\site-packages\demjson-1.4-py2.5.egg',
     'C:\Python25\lib\site-packages\stomper-0.2.2-py2.5.egg',
     'C:\Python25\lib\site-packages\uuid-1.30-py2.5.egg',
     'C:\Python25\lib\site-packages\stompservice-0.1.0-py2.5.egg',
     'C:\Python25\lib\site-packages\cherrypy-3.0.1-py2.5.egg',
     'C:\Python25\lib\site-packages\pyorbited-0.2.2-py2.5.egg',
     'C:\Python25\lib\site-packages\flup-1.0.1-py2.5.egg',
     'C:\Python25\lib\site-packages\wsgilog-0.1-py2.5.egg',
     'c:\testdir',
     'C:\Windows\system32\python25.zip',
     'C:\Python25\DLLs',
     'C:\Python25\lib',
     'C:\Python25\lib\plat-win',
     'C:\Python25\lib\lib-tk',
     'C:\Python25',
     'C:\Python25\lib\site-packages',
     'C:\Python25\lib\site-packages\PIL',
     'C:\Python25\lib\site-packages\win32',
     'C:\Python25\lib\site-packages\win32\lib',
     'C:\Python25\lib\site-packages\Pythonwin']

我的 PYTHONPATH 是:

My PYTHONPATH is:

    PYTHONPATH=c:	estdir

我想知道 PYTHONPATH 之前的那些路径来自哪里?

I wonder where those paths before PYTHONPATH's ones come from?

推荐答案

从环境变量 PYTHONPATH 初始化，加上依赖于安装的默认值"

"Initialized from the environment variable PYTHONPATH, plus an installation-dependent default"

-- http://docs.python.org/library/sys.html#sys.path

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