Specifying version of python to be used to run a script

Question

I have both python 2.7 and 3.2 installed on my system. I want some scripts to run using python 3.2, and some using 2.7 However, I don't want to go to IDLE every time to run scripts. Can anything be done such that the scripts execute themselves in the version specified?

I have tried some experimentation with sys and os modules, but that turned out to be useless.

Which operating system are you using?

thefourtheye
– thefourtheye

2014-03-28 13:05:11 +00:00
Commented Mar 28, 2014 at 13:05 — thefourtheye
– thefourtheye, Commented Mar 28, 2014 at 13:05

Rahul Patil · Accepted Answer · 2014-03-28 13:17:48Z

6

If you are on *nix system then you can use Shebang

Example :

#!/usr/bin/env python3.2

Or

#!/usr/bin/env python2.7

Or You can run script using specific version

Example:

python2.7 yourscript.py

If you are on Windows System then you can use

#!/Python26/python

edited Mar 28, 2014 at 13:17

answered Mar 28, 2014 at 13:10

Rahul Patil

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2 Comments

Torxed Over a year ago

To complete the answer if OP is running windows, you can do #!/Python26/python to run Python2.6 for instance.

Wooble Over a year ago

IIRC, the Windows python runner tool (py.exe) can read the Unix shebangs just fine.

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