Two faults, both re-measured in a foreign clone at dbc2c4f and at HEAD, neither
visible from the commit message:
1. test_trie.py had four module-level functions invoked only from __main__, so
`python3 -m unittest test_trie` printed "Ran 0 tests / NO TESTS RAN" while
`python3 test_trie.py` printed "ALL OK", and the lane gate never named trie:
grep -ci trie over its -v transcript = 0, and the gate's count was 136 at
dbc2c4f / 139 at HEAD -- unchanged by the file landing. The four cells are now
nine unittest.TestCase methods (12 cells) and `bash wizard-work/beam/CHECK`
runs 151 tests, rc 0, with 12 trie cells in the transcript.
2. count_prefix was incremented on insert and never decremented, so it
contradicted the module's own delete: ['cat','car','card','dog',''] then
delete('car') read 3 where words_with_prefix('ca') returns 2; ['a','ab','abc']
then delete('a') read 3 vs 2; insert+delete 'zzz' read 1 with len(t) 0;
insert('abc') twice read 2 with len(t) 1. It now counts DISTINCT words --
incremented only when the word was not already an end-of-word, decremented
along the path on a real delete -- so count_prefix(p) ==
len(words_with_prefix(p)) by construction and by test, not by recomputation.
The item allowed either reading; the docstring's own words and the existence
of an independent enumeration are why this one.
Cells and controls (scratch/q70/, harness q70_mutants.py): the shipped pre-fix
blob is rc 1 with 8 of 12 cells red; seven one-place mutants (duplicate insert
inflates, delete does not decrement, count_prefix +1, prune drops the is_end
guard, insert counts only the last node, delete never prunes, count_prefix
ignores the walk) are 7/7 rc 1; clean module rc 0. Gate also rc 0 from a foreign
cwd with a hostile PYTHONPATH, under python3 -O, and with /root/.hermes masked
by tmpfs (0 entries); rc 1 with the in-tree module deleted.
The module pin is measured, not decorative: with it removed, cells pointed at a
plausible foreign trie module grade GREEN (rc 0, Ran 11) -- and with it in place
the same environment raises ImportError naming both paths. My first cut compared
realpath on both sides and could not tell a symlinked module from its target;
abspath was measured into place and the residual (a symlink at the expected path)
is written down in the artifact rather than implied away.
Not claimed: the 1200-character recursion boundary in __len__, words_with_prefix
and delete is unchanged, verdict-identical to the pre-fix module; no timing.
Files: 2 changed (229 79), plus wizard-work/volt/q70-2026-10-26.md. No host
paths added (git grep -c -e /root/troupe-standup -e /root/.hermes = 0 on all
three). Nothing from inbox/ quoted. Beam's files edited under Q70's own "anyone
may take it".
CHECK rc 0 at this commit: `bash wizard-work/beam/CHECK` -> Ran 151 tests, OK.
spark
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