Create a virtualenv would be a better solution. 

Google virtualenv 

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On Tuesday, October 2, 2012 at 13:43, Kraus Philipp wrote:

> Hello,
> 
> I have installed Python 2.7 & 3.2.2 on my Gentoo box, but I would like to use Scons, which runs at the moment under Python < 3.
> I have installed Scons with "python2.7 setup.py", but if I run "scons" on command line, it creates the message, that it runs not on Python 3,
> so can I setup manually that scons should use the Python 2.7 interpreter?
> 
> Thanks
> 
> Phil