Cannot pass an argument to python with “#!/usr/bin/env python”

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In some environment, env doesn’t split arguments.
So your env is looking for python -u in your path.
We can use sh to work around.
Replace your shebang with the following code lines and everything will be fine.

#!/bin/sh
''''exec python -u -- "$0" ${1+"$@"} # '''
# vi: syntax=python

p.s. we need not worry about the path to sh, right?

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