_python_env.sh
bash
sha256:f65847c6a4ae29872f3ccbc2420f91a8948949b84a06320bdaf2ac281c89ff8a
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| 1 | #!/usr/bin/env bash |
| 2 | # Resolve a Python interpreter that can import the MuseHub app. |
| 3 | # |
| 4 | # Sourced by every scripts/verify/verify_*.sh wrapper. Sets PY to an interpreter |
| 5 | # whose environment satisfies `import musehub.main`, or exits non-zero. |
| 6 | # |
| 7 | # Fails closed on purpose: an L1 checkpoint that silently passes because no |
| 8 | # interpreter was available is worse than one that refuses to run. The three |
| 9 | # MuseHub verify checks exist precisely because "the suite was green" was |
| 10 | # accepted as proof that the app worked, so "the check did not run" must never |
| 11 | # be reported as success. |
| 12 | # |
| 13 | # Resolution order: |
| 14 | # 1. $MUSEHUB_VERIFY_PYTHON — explicit override (CI, containers) |
| 15 | # 2. .venv/bin/python — local developer environment |
| 16 | # 3. python3 on PATH — only if it can already import musehub |
| 17 | # |
| 18 | # Docker is deliberately not attempted: docker-compose.override.yml bind-mounts |
| 19 | # ../contracts, which is empty on at least one developer machine, so a container |
| 20 | # fallback would fail with a misleading error instead of a clear setup message. |
| 21 | |
| 22 | set -euo pipefail |
| 23 | |
| 24 | _verify_can_import() { |
| 25 | "$1" -c 'import musehub.main' >/dev/null 2>&1 |
| 26 | } |
| 27 | |
| 28 | PY="" |
| 29 | |
| 30 | if [[ -n "${MUSEHUB_VERIFY_PYTHON:-}" ]]; then |
| 31 | if [[ ! -x "${MUSEHUB_VERIFY_PYTHON}" ]]; then |
| 32 | echo "FAIL: MUSEHUB_VERIFY_PYTHON=${MUSEHUB_VERIFY_PYTHON} is not executable" >&2 |
| 33 | exit 3 |
| 34 | fi |
| 35 | PY="${MUSEHUB_VERIFY_PYTHON}" |
| 36 | elif [[ -x ".venv/bin/python" ]]; then |
| 37 | PY=".venv/bin/python" |
| 38 | elif command -v python3 >/dev/null 2>&1 && _verify_can_import "python3"; then |
| 39 | PY="python3" |
| 40 | else |
| 41 | cat >&2 <<'SETUP' |
| 42 | FAIL: no Python interpreter can import the MuseHub app. |
| 43 | |
| 44 | The L1 verify checks refuse to report success when they cannot run. |
| 45 | |
| 46 | Set up a local environment (pyproject requires Python >= 3.14, and the [dev] |
| 47 | extra cannot install because muse_contracts is published on no index): |
| 48 | |
| 49 | python3.14 -m venv .venv |
| 50 | .venv/bin/python -m pip install -e . |
| 51 | .venv/bin/python -m pip install -e ../muse |
| 52 | .venv/bin/python -m pip install pytest httpx |
| 53 | |
| 54 | Or point the checks at an existing interpreter: |
| 55 | |
| 56 | MUSEHUB_VERIFY_PYTHON=/path/to/python ok verify-step <step> |
| 57 | SETUP |
| 58 | exit 3 |
| 59 | fi |
| 60 | |
| 61 | export PY |
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sha256:f65847c6a4ae29872f3ccbc2420f91a8948949b84a06320bdaf2ac281c89ff8a
docs(F7b): governance sync — BUILT awaiting Gabriel; carry …
Human
patch
26 days ago