https://stackoverflow.com/questions/40143190/how-to-execute-multiline-python-code-from-a-bash-script
#!/bin/bash
# some bash code
END_VALUE=10
PYTHON_CODE=$(cat <<END
# python code starts here
import math
for i in range($END_VALUE):
print(i, math.sqrt(i))
# python code ends here
END
)
# use the
res="$(python3 -c "$PYTHON_CODE")"
# continue with bash code
echo "$res"