janik
23edb39f52
Build PCM package / build (push) Successful in 5s
Second Mac run (KiCad demo board opened from the mounted installer image) got past the dialog and died twice: 1. make_output_dir crashed with OSError 30: the demos volume is a read-only filesystem. Now falls back to a temp directory named after the board, with the path printed (the Messages panel showed it is actually read there). 2. The error figure - and every other figure - could never render: matplotlib refused with Cannot load backend TkAgg ... as qt is currently running. macOS bundled Python ships tkinter, so the old tk-first probe picked TkAgg while the PySide6 dialog and progress window had already made this a Qt process. Windows never saw it because KiCad Python there has no tkinter. Qt now comes first - PySide6 is a hard dependency, so it is always there. Both covered by tests that fail on the old code: the dev env has both toolkits installed, so the backend-order assertion is exercised for real, and the RO fallback is simulated by denying mkdir under the board dir. 140 passed on the dev stack and on the Python 3.9 + numpy 2.0 / scipy 1.13 / matplotlib 3.9 / PySide6 6.10 stack that a Mac venv resolves. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>