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Inspired by a comment on the original version, it looks like we can use a docstring instead of a variable definition to hide the shell script. And by using : as suggested as the "placeholder" command in the shell script it is fairly readable.
From a quick test, it looks like this might work with a Bourne shell / Python2 / Python3, but needs some more testing. Test further, and if it works, then update the example.
The bonus of using a docstring to hide the data is that we can then use from __future__ ... in the Python code section.
""":" # Shell script, Python doc string; find Python interpreter
# Try the usual locations
for INTERPRETER in python3 python2 python; do
PYTHON=$(command -v "${INTERPRETER}" 2>/dev/null)
if [ -n "${PYTHON}" ]; then
echo "Found Python in ${PYTHON}" >&2
exec "${PYTHON}" "$0" "$@"
fi
done
# Maybe we have Ansible or some other Python system program
# whose homework we can copy?
#
for PROGRAM in ansible; do
PROGPATH=$(which "${PROGRAM}" 2>/dev/null)
if [ -n "${PROGPATH}" -a -r "${PROGPATH}" ]; then
PYTHON=$(head -1 $(command -v ansible) | sed 's/^#!//; s/^ *//; s/\/usr\/bin\/env //; s/ .*$//;')
if [ -n "${PYTHON}" ]; then
echo "Found Python in ${PYTHON}" >&2
exec "${PYTHON}" "$0" "$@"
fi
fi
done
# Or we have some random OS default location
for PYTHON in /usr/libexec/platform-python; do
if [ -x "${PYTHON}" ]; then
echo "Found Python in ${PYTHON}" >&2
exec "${PYTHON}" "$0" "$@"
fi
done
echo "Sorry, I have no idea where Python is. Is it even installed?!" >&2
exit 254
":""" # End of shell script, start of shared code
from __future__ import print_function
print("Hello World!")
The text was updated successfully, but these errors were encountered:
Inspired by a comment on the original version, it looks like we can use a docstring instead of a variable definition to hide the shell script. And by using
:
as suggested as the "placeholder" command in the shell script it is fairly readable.From a quick test, it looks like this might work with a Bourne shell / Python2 / Python3, but needs some more testing. Test further, and if it works, then update the example.
The bonus of using a docstring to hide the data is that we can then use
from __future__ ...
in the Python code section.The text was updated successfully, but these errors were encountered: