[9.0] test: Python 3.14 and matplotlib 3.11 compatibility in test suite#8701
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fstagni merged 3 commits intoJul 11, 2026
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A plot is accepted when it matches any of several reference images, so a matplotlib upgrade that changes the rendering only needs an extra reference image (<stem>.<tag>.png) rather than replacing the existing one.
Rendered with the matplotlib shipped in DIRACOS for Python 3.14, so the plot comparison tests pass on both the previous and the new matplotlib.
fstagni
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Jul 11, 2026
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Backport of #8695 to
rel-v9r0.Summary
assertDictContainsSubset(removed in Python 3.12) withassertLessEqual(subset.items(), full.items())in the user-metadata integration test.referenceImages/compareToReferences), so a matplotlib change only needs an additional<stem>.<tag>.pngreference rather than replacing the existing one.