Lightning Talk – Python Dependencies the Right Way
summary
30-engineer monorepo with ~100 Python apps (300,000 LOC) faces chaotic third-party deps for Bazel builds. The team builds beve, Starlark macros plus command-line glue that uses pip-tools/pip-compile to produce one lock file per application from Bazel’s transitive requires attributes. Each lock generates a reproducible venv for testing and a wheel for deployment. Result: exact pinned dependency sets tracked in git and easy wheels. Tradeoffs: developers must switch venvs, Bazel caching weakens, and dependency propagation is manual.
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