3.x and 2.x on same machine (is this info at Python.org??)

[Dan Bishop]

On Nov 12, 1:52 pm, rantingrick <rantingr... at gmail.com> wrote:
> Hello,
>
> Currently i am using 2.6 on Windows and need to start writing code in
> 3.0. I cannot leave 2.x yet because 3rd party modules are still not
> converted. So i want to install 3.0 without disturbing my current
> Python2.x. What i'm afraid of is that some SYSVARIABLE will get
> changed to Python3.0 and when i double click a Python script it will
> try and run Python 3.x instead of 2.x. I only want to run 3.0 scripts
> from the command line... > python3.x myscript.py
>
> So how do i do this? Is my fear unfounded?

Windows determines the double-click action based on the file
extension.  You just have to make sure that *.py files are associated
with 2.x.
http://support.microsoft.com/kb/307859