Separate Windows versions of Python

[Terry Reedy]

Scott David Daniels wrote:

> On windows, major versions (..., 2.5, 2.6, 2.7, ...., 3.0, 3.1,  ...)
> can coexist quite successfully.  Find and run an installer for the
> latest version  of 2.5 (2.5.4, I believe) on the Python download page.
> That will make 2.5 your default Python. 

  believe the installer gives one the choice as to whether or not to 
make the new installation the default -- which is to say, the one 
registered with .py, etc, extensions.