Why: for a top-level file like carddav.py, crapper passed --source=carddav.py
to coverage.py, which expects a module name, so the file always scored 0%.
What: python_sources now converts files to module names via _source_name.
Proof: new failing test in tests/test_runners.py, then fix; suite 146/146;
carddav.py now measured at 100% in family-and-friends-store.
A path in a built-in coverage command is one argument, a failed custom coverage command does not read a stale report, and git failures exit with git's status. The Clojure reader honors discards, metadata, and character literals. Long functions are split so every score is under 10 except the option switch.
Robert C. Martin