SOLVED: no halt at matplotlib.pyplot.show()

[HarryvL]

Normally python execution halts when calling matplotlib.pyplot.show(). This worked fine 3 years ago when I wrote the following macro: https://forum.freecadweb.org/viewtopic. ... 60#p306681. Back then, execution halted on matplotlib.pyplot.show() for the user to press <stop> or <add> and would then be terminated or continued, depending on the response. For some reason, in FC20, the plot is shown, but execution continues regardless. Did anything change in FC20 that might cause this behavior? If so, how could I overcome this? GOOGLE doesn't help me any further.

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OS: Ubuntu 22.04 LTS (ubuntu:GNOME/ubuntu)
Word size of FreeCAD: 64-bit
Version: 0.20.28896 (Git)
Build type: Unknown
Branch: master
Hash: 8996cddbc043d1d8d27d27c25d2a25916b5287e7
Python 3.10.4, Qt 5.15.3, Coin 4.0.0, OCC 7.5.1
Locale: English/United States (en_US)

[HarryvL]

PS: print output is also no longer generated in the Report View window until after the macro completes

[Kunda1]

Just a wild guess, but plot workbench was made in to an external workbench downloadable through the AddonManager.

[HarryvL]

I get a warning at start-up:

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16:56:48  Addon Manager Warning: Could not import QtWebEngineWidgets, it seems to be missing from your system. Please use your system's package manager to install the python3-pyside2.qtwebengine* and python3-pyside2.qtwebchannel packages, and if possible alert your package creator to the missing dependency. Display of package README will be limited until this dependency is resolved.

Perhaps it has to do with the missing packages?!

PS: matplotlib is an external library, not a user addon.

[HarryvL]

According to aptitude the two packages are installed on my machine.

[Kunda1]

Not sure if i was clear, Plot workbench is now an external workbench. You can grab it through the Addon Manager. IIRC, the addon manager will auto-install matplotlib as well.

Plot wb available through addon manager

Screenshot_20220526_112324.png (71.78 KiB) Viewed 831 times

[HarryvL]

Thanks, but that didn't make a difference.

[HarryvL]

This is the warning the package manager gives:

Screenshot from 2022-05-26 18-06-34.png (45.75 KiB) Viewed 800 times

[Kunda1]

If you restart and type:

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Import matplotlib

What do you see?

[HarryvL]

No errors:

Screenshot from 2022-05-27 08-09-22.png (21.42 KiB) Viewed 715 times