Using Python To Launch Python

Ivan Ven Osdel ivan at
Mon Jul 14 23:48:55 CEST 2008

>Hello All,
>  I have a situation where I can count on a Python installation being
>available on a system, but I can't count on it being a version of
>Python needed by my application.  Since my application has it's own
>version of Python installed with it how should I use the system Python
>to launch the version of Python that launches my Application.  Yes,
>this is a convoluted process, but not all Pythons are built the
>same :)
>Right now I am leaning towards using exec to start a new process, but
>I thought I would check to see if anyone else has had the need to
>perform a task similar to this one.


Simplest case:

>>> import os
>>> os.system("/path/to/your/python")

Obviously things can be shortened by adding to the PATH.

Ivan Ven Osdel
Software Engineer

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