Python：哪个包包含安装元数据？

Question

例如，我如何知道可执行文件已安装在“/usr/bin/python”中，而库文件已安装在“/usr/lib/python2.6”中？

Answer 1

distutils.sysconfig 是“提供对 Python 的访问”的模块低级配置信息”。 get_python_lib 函数特别给出了“通用库安装或依赖于平台的库安装”，具体取决于其参数。

但是，sys.executable 并未由所述 sysconfig 模块公开——它仅在 sys 模块中。

Answer 2

您需要 sys 模块：

>>> print sys.executable
/usr/bin/python
>>> print sys.path
['', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python26.zip',
 '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-old', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload', 
'/Library/Python/2.6/site-packages', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/PyObjC', 
'/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/wx-2.8-mac-unicode']