passlib 1.7.4 (last release, unmaintained since ~2020) detects its bcrypt
backend via bcrypt.__about__.__version__, which bcrypt>=4.1 removed. Every
hash_password/verify_password call was raising 'password cannot be longer
than 72 bytes' -- a misleading downstream symptom of the real
AttributeError: module 'bcrypt' has no attribute '__about__'.
Without this pin, pip install -r requirements.txt silently grabs whatever
the latest bcrypt is and breaks register/login outright -- confirmed this
broke 3 separate pieces of work this session (manual register curl tests,
and now a real Godot smoke test) purely from environment drift, not from
any actual code bug. Verified the fix works from a genuinely clean venv +
pip install, not just patching the already-installed shared venv.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
claude-checkpoint-tooling