Finding installation directory of a program on windows from python

A python program needs to find the installation location of openoffice.org, which is installed on a Windows XP computer. What is the best w开发者_运维知识库ay to do this?

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You can use the _winreg module on windows: First find out the path in the registry (eg starting regedit.exe and using its find function). Then you can query this path as I did it once to find the home directory of R:

key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, "Software\\R-core\\R")
value =  _winreg.QueryValueEx(key, "InstallPath")[0]

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If you are not familiar with the windows regstry: have a look at http://en.wikipedia.org/wiki/Windows_Registry