Fix: Handle inline backends in plt_show#14076
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mh105
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larsoner
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Jul 20, 2026
Add comment regarding fig.show() failure for inline backends.
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Reference issue (if any)
None
What does this implement/fix?
mne.viz.utils.plt_show()currently callsFigure.show()when it receives a figure. With a Matplotlib inline backend, that call does not reliably trigger display in notebook-style frontends. This includes the VS Code Interactive Window that some people use.matplotlib.pyplot.show()does.This change detects inline backend identifiers case-insensitively and routes them through
plt.show(**kwargs). Other GUI backends continue to use(fig or plt).show(**kwargs), while the existing no-show behavior for Agg andshow=Falseremains unchanged.Additional information
I manually identified the issue and implemented the fix, but Codex added the test case to mne/viz/tests/test_utils.py