Enable some optional but useful features of Python through environment variables

monty-python.sh

# This file is intended to be sourced by a shell, not doing anything by 
# default, but adding functions "full-monty" and "no-monty" as enabler and 
# disabler respectfully of some useful features in Python through environment 
# variables. Put it somewhere like /etc/profile.d/ or the likes. Or don't 🤷
# 
# See https://docs.python.org/3/using/cmdline.html#environment-variables

full-monty() {
    # run in optimized mode, removing assert and debug code
    export PYTHONOPTIMIZE=1
    # use UTF-8 as the default encoding basically everywhere
    export PYTHONUTF8=1
    # use colors where supported (3.13+)
    export PYTHON_COLORS=1
    # attempt to disable the GIL (3.13+)
    export PYTHON_GIL=0
    # enable the JIT compiler (3.13+)
    export PYTHON_JIT=1
    # make lazy imports the default (3.15+)
    export PYTHON_LAZY_IMPORTS=all
}

no-monty() {
    unset PYTHONOPTIMIZE
    unset PYTHONUTF8
    unset PYTHON_COLORS
    unset PYTHON_GIL
    unset PYTHON_JIT
    unset PYTHON_LAZY_IMPORTS
}

export -f full-monty
export -f no-monty