Fix Python – Installing SetupTools on 64-bit Windows


Asked By – quanticle

I’m running Python 2.7 on Windows 7 64-bit, and when I run the installer for setuptools it tells me that Python 2.7 is not installed. The specific error message is:

`Python Version 2.7 required which was not found in the registry`

My installed version of Python is:

`Python 2.7 (r27:82525, Jul  4 2010, 07:43:08) [MSC v.1500 64 bit (AMD64)] on win32`

I’m looking at the setuptools site and it doesn’t mention any installers for 64-bit Windows. Have I missed something or do I have to install this from source?

Now we will see solution for issue: Installing SetupTools on 64-bit Windows


Apparently (having faced related 64- and 32-bit issues on OS X) there is a bug in the Windows installer. I stumbled across this workaround, which might help – basically, you create your own registry value HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.6\InstallPath and copy over the InstallPath value from HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath. See the answer below for more details.

If you do this, beware that setuptools may only install 32-bit libraries.

NOTE: the responses below offer more detail, so please read them too.

This question is answered By – Dave Everitt

This answer is collected from stackoverflow and reviewed by FixPython community admins, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0