FAQ

Do I need _depdigest.py to start?

No. You can start with just @dep_digest(...).
But for a real library, _depdigest.py is strongly recommended.

Should I use dependency keys or package install names?

Use importable module names as keys (for example openmm.unit). Use pypi/conda fields only for install hints.

Can I use DepDigest with custom exceptions?

Yes. Set EXCEPTION_CLASS in _depdigest.py.

Is LazyRegistry mandatory?

No. Use it only if you have many optional modules/plugins and startup cost matters.

Does DepDigest replace package managers?

No. It does not install dependencies. It checks availability and reports clear actions to users.

How does this relate to SMonitor?

DepDigest integrates with SMonitor for structured diagnostics and breadcrumb traceability.