Checked 2026-10-07:
https://docs.python.org/3.12/using/cmdline.html#cmdoption-m (HTTP 200; -m module execution)
https://docs.python.org/3.12/library/sys.html#sys.executable (HTTP 200; interpreter path)
https://docs.python.org/3.12/library/unittest.html#test-discovery (HTTP 200; discovery)
https://api.github.com/repos/python/cpython/git/ref/tags/v3.12.3 (HTTP 200; upstream Git commit f6650f9ad73359051f3e558c2431a109bc016664)
https://archive.ubuntu.com/ubuntu/pool/main/p/python3.12/python3.12_3.12.3-1ubuntu0.17.dsc (HTTPS; exact installed package version)
Ubuntu source archives downloaded and checked against .dsc; source files reside outside repository at /tmp/tasklab-00-20261007/; PGP signature verification NOT_RUN.
