How do I install Python 2.7.3 32 bit and 64 bit on Windows side by side

python win64
Ruediger Jungbeck picture Ruediger Jungbeck · Apr 17, 2012 · Viewed 32.5k times · Source

I have Windows Vista 64.

I have some projects requiring Python 2.7.3 64 bit and others requiring Python 2.7.3 32 bit (because some extensions do not work in 64 bit).

How do I prevent the Python 2.7.3 MSI installer (32 or 64 bot) from deleting the other version.

Side by side worked for me with Python 2.7.2 without problems.

Answer

Nicola Musatti picture Nicola Musatti · Sep 16, 2012

This appears to be working for me on Windows 7 64 bit. Choose one version to be your default installation, e.g. 64 bit, and install it first. Before doing anything else install the other version.

Specify a different installation directory and in the Customize Python 2.7.3 screen select Register Extensions and select Entire feature will be unavailable.

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