Conditional shebang line for different versions of Python

Question

I have a problem when trying to run a python script on two different computers. On each computer I would like to run the script using python version 2.7.3 however the probl

Answer 1

You can write a small wrapper script that looks through different versions of python executables and uses the one it finds.

For example:

#!/bin/sh -e
pythons=('python2', 'python2.7.3')
for py_exec in ${pythons[@]}; do
    py_exec="/usr/bin/$py_exec"
    if [[ -f $py_exec ]]; then
        exec $py_exec $1
    fi
done

Of course this script is just a start sample, you could surely improve it in many ways. Just do give you an idea of what I mean.