Every package stands on other packages. This instrument surveys the whole territory: the total first-party lines of code in a package's entire dependency closure — each repository counted exactly once.
Survey boundary: declared runtime dependencies, resolved by deps.dev; language standard libraries and runtimes excluded; lines counted at each repository's HEAD, first-party code only (vendored & generated files dropped; data/markup formats — JSON, YAML, Markdown &c. — don't count as code); the closure is a DAG — shared dependencies are counted once, not once per path. Some PyPI closures cannot be resolved at all — Sheet No. 2 explains why.
Charts already drawn — open instantly.