Path of current Python instance?

I 开发者_Python百科need to access the Scripts and tcl sub-directories of the currently executing Python instance's installation directory on Windows.

What is the best way to locate these directories?

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Have a look at sys.prefix and sys.exec_prefix

>>> import sys
>>> sys.prefix
'/System/Library/Frameworks/Python.framework/Versions/2.6'
>>> sys.exec_prefix
'/System/Library/Frameworks/Python.framework/Versions/2.6'

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Hmm, find the Lib dir from sys.path and extrapolate from there?