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Remove recursion in plot_ica_components and use context manager for plt.ion/plt.ioff#11696

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larsoner merged 8 commits intomne-tools:mainfrom
mscheltienne:plot_ica_topo
May 16, 2023
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Remove recursion in plot_ica_components and use context manager for plt.ion/plt.ioff#11696
larsoner merged 8 commits intomne-tools:mainfrom
mscheltienne:plot_ica_topo

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@mscheltienne mscheltienne commented May 15, 2023 •
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Closes #11693
Closes #11510 (lucky hit, that was the same bug at play)

Prevents spyder console and jupyter notebook from hanging because of:

plt.ion()
# stuff
plt.ioff()

And restructure plot_ica_components to remove recursion and gather all figures before plt.show.

@mscheltienne mscheltienne marked this pull request as draft May 15, 2023 12:40
@mscheltienne mscheltienne mentioned this pull request May 15, 2023
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mscheltienne commented May 15, 2023
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mne/viz/_mpl_figure.py
Comment on lines -78 to -85
plt.ion()
BACKEND = get_backend()
# This ↑↑↑↑↑↑↑↑↑↑↑↑↑ does weird things:
# https://github.com/matplotlib/matplotlib/issues/23298
# but wrapping it in ion() context makes it go away (can't actually use
# `with plt.ion()` as context manager, though, for compat reasons).
# Moving this bit to a separate function in ../../fixes.py doesn't work.
plt.ioff()
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@mscheltienne mscheltienne May 15, 2023 •
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That part is what is hanging jupyter notebooks and spyder consoles.

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@larsoner larsoner May 15, 2023 •
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I think the right thing to do here would be to take advantage of the context-manager capabilities (available in 3.4 already which is our min req, probably wasn't the case when this comment was written as context-manager support isn't available in 3.3) like:

with plt.ion():
    BACKEND = get_backend()

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... and if you could please do this in mne/viz/backends/_notebook.py as well, it would be much appreciated! (Found via git grep when looking into this issue in our repo...)

@larsoner larsoner added the backport-candidate on-merge: backport to maint/1.12 label May 15, 2023
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larsoner commented May 15, 2023

Labeling as backport candidate since I was hitting this issue before the 1.4 cut and the min version that supports context managing was listed as mpl 3.4 for MNE 1.4 👍

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mscheltienne commented May 16, 2023

Done, good point for the context manager, glad we can use it 😄
For the minimum matplotlib version, it should also be specified in requirements.txt, requirements_base.txt and in the conda-forge recipe, no?

@mscheltienne mscheltienne changed the title Remove recursion in plot_ica_components Remove recursion in plot_ica_components and use context manager for plt.ion/plt.ioff May 16, 2023
@mscheltienne mscheltienne marked this pull request as ready for review May 16, 2023 11:47
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larsoner commented May 16, 2023

For the minimum matplotlib version, it should also be specified in requirements.txt, requirements_base.txt and in the conda-forge recipe, no?

Yeah we should. Looks like for the feedstock at least we're just out of date:

https://github.com/conda-forge/mne-feedstock/blob/main/recipe/meta.yaml#L63

@larsoner larsoner merged commit 97db26c into mne-tools:main May 16, 2023
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larsoner commented May 16, 2023

Awesome, thanks @mscheltienne !

larsoner pushed a commit that referenced this pull request May 16, 2023
@mscheltienne @larsoner
Remove recursion in plot_ica_components and use context manager for p…
2bdad5d 
…lt.ion/plt.ioff (#11696)
@larsoner larsoner added backported and removed backport-candidate on-merge: backport to maint/1.12 labels May 16, 2023
@mscheltienne mscheltienne deleted the plot_ica_topo branch May 16, 2023 18:10
This was referenced May 16, 2023
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larsoner added a commit to larsoner/mne-python that referenced this pull request May 18, 2023
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Merge remote-tracking branch 'upstream/main' into cola5
954a990 
* upstream/main: (32 commits)
  MAINT: Update download buttons [skip azp] [skip actions] [skip cirrus]
  Fix canvas.draw() in callback (mne-tools#11697)
  Remove recursion in plot_ica_components and use context manager for plt.ion/plt.ioff (mne-tools#11696)
  Update affiliation (mne-tools#11695)
  BUG: Fix bug with fwd restriction (mne-tools#11694)
  MRG: Suggest using "conda rename" in MNE updating instructions (mne-tools#11692)
  FIX: Regex [ci skip]
  MAINT: Apply deprecations [circle deploy] (mne-tools#11687)
  MAINT: Release 1.4.0 (mne-tools#11686)
  Trap music (mne-tools#11679)
  Fix call to plot_tfr_topomap from interactive AverageTFR.plot_topo function (mne-tools#11683)
  silence spectrum plot warning in examples/tutorials [circle full] (mne-tools#11682)
  Spectrum plot picks (mne-tools#11680)
  Update website conf (mne-tools#11675)
  BUG: Fix bug with MF LCMV rank (mne-tools#11664)
  ENH: Change known_config_types to dict (mne-tools#11166)
  MAINT: Improve README (mne-tools#11673)
  MAINT: Add to git-blame-ignore-revs [circle front]
  MAINT: Run black on codebase
  MAINT: Use black
  ...
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