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I need to run Python interpreter with custom parameters and custom environment.

Let's say I create a bash script which exports required variables and calls /usr/bin/python3 with required parameters. When I run Python via this script, sys.executable will be still /usr/bin/python3.

Can I somehow construct the wrapper script such that sys.executable would report the path of the wrapper script? I tried exec /usr/bin/python3, but this didn't change the matters.

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    That seems to be the definition of sys.executable. Perhaps you want to look in sys.argv[0] ?
    – meuh
    CommentedNov 18, 2018 at 19:18

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Found the solution myself:

exec -a "$0" /usr/bin/python3

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