Twisted Install Error with Odd Python/Win32 Setup

New submission from teratorn <[email protected]>:

I have Python2.6 installed system-wide in D:\Python26. It works fine. The reg key
{{{
    HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath
}}}
points to the right place (NOT the C: drive).

Regardlessly, the Twisted Installer creates the non-existant directory C:\Python26 (and subdirs) and copies the library files over, then it tries to execute a command using C:\Python26\pythonw.exe (which fails with a MessageBox because the executable doesn't exist).

Obviously we should be getting the right path to Python out of the registry, or it should LoadLibrary() on the Python DLL and introspect the right paths.

I may investigate further as time and opportunity permit. Anyone that tackles this let me know if you need help with anything. Cheers -E

PS. Assigning to Timothy Fitz because you are the other person that claims, however hesitantly, to know a thing about windows (:

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Type     : defect
Component: release management
Keywords : win32, release, installer
Priority : normal
Nosy     : TimothyFitz, moonfallen, teratorn
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http://twistedmatrix.com/trac/ticket/4068