hash bang

[Gribouillis]

You can perhaps run this shell script at launch time: it creates a python file then uses exec to run it and the python file destroys itself in the end

#!/bin/bash

read -r -d '' SPAM << ENDOFCODE
def hi():
    print('hello world')
hi()
import os
os.remove(__file__)
ENDOFCODE

echo "$SPAM" > /tmp/spam.py
exec /usr/bin/python3 /tmp/spam.py

Obviously you can run an arbitrary python script with this. You can also improve this my using mktemp to name the python script.

EDIT: Better version:

#!/bin/bash

PYFILE=$(mktemp --suffix=.py)
cat << ENDOFCODE > $PYFILE
def hi():
    print('hello world')
hi()
import os
print('removing:', __file__)
os.remove(__file__)
ENDOFCODE

exec /usr/bin/python3 $PYFILE

EDIT: In this last version, there isn't even a temporary file

#!/bin/bash

cat << ENDOFCODE | exec /usr/bin/python3 -c "import sys; exec(sys.stdin.read())"
def hi():
    print('hello world')
hi()
ENDOFCODE

You can remove the word exec if you don't mind that your python script executes with a different pid.