devloop/devloop/scripts/python at v0.3.1 · compforge/devloop · GitHub

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#!/bin/sh

# Resolve one supported Python for every devloop entrypoint. Users commonly have several

# names on PATH (python, python3, python3.14); the first name is not necessarily the newest.

run_if_supported() {

py=$1

shift

command -v "$py" >/dev/null 2>&1 || return 1

"$py" -c 'import sys; raise SystemExit(0 if sys.version_info >= (3, 10) else 1)' \

>/dev/null 2>&1 || return 1

exec "$py" "$@"

}

if [ -n "${DEVLOOP_PYTHON:-}" ]; then

run_if_supported "$DEVLOOP_PYTHON" "$@"

echo "devloop: DEVLOOP_PYTHON is unavailable or older than Python 3.10: $DEVLOOP_PYTHON" >&2

exit 127

for py in python3 python; do

run_if_supported "$py" "$@"

done

# Some installations expose only a versioned binary. Discover those names from PATH so

# this keeps working for future Python releases without extending a hard-coded list.

old_ifs=$IFS

IFS=:

for dir in ${PATH:-}; do

[ -n "$dir" ] || dir=.

for py in "$dir"/python3.*; do

[ -x "$py" ] || continue

run_if_supported "$py" "$@"

done

IFS=$old_ifs

echo "devloop: Python 3.10+ not found (tried python3, python, and python3.* on PATH)" >&2

exit 127

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