https://bugs.kde.org/show_bug.cgi?id=409288
Bug ID: 409288
Summary: Mayavi's plots don't show up/work in Cantor
Product: cantor
Version: 19.04
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: cantor-b...@kde.org
Reporter: d...@bk.ru
Target Milestone: ---
SUMMARY
Mayavi's plots don't show up/work in Cantor
STEPS TO REPRODUCE
0. You probably need to set first in your environment QT_API=pyqt5
1. Install Mayavi: https://docs.enthought.com/mayavi/mayavi/
2. Try the demo example: https://docs.enthought.com/mayavi/mayavi/mlab.html
OBSERVED RESULT
Cantor hangs on 'Calculating…', no plots are shown.
EXPECTED RESULT
A nice plot from the above example.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Ubuntu 18.04.2
(available in About System)
KDE Plasma Version: N/A (irrelevant, but) (Unity)
KDE Frameworks Version: (irrelevant, but) any from v5.44.0 backported to, to
v5.58.0 (backported)
Qt Version: (less relevant, but) v5.9.5 backported to, or any released up to
date
ADDITIONAL INFORMATION
I may be unavailable to respond, however, with the following it should be
enough to replicate the bug:
Installing Mayavi might be not trivial, depending on your environment, pay
attention to the Warning section in step 2 above that suggests using qt4 and
use qt5 instead as in step 0. In Debian/Ubuntu it is available via 'sudo
apt-get install mayavi2' (= 4.5.0), but the latest 4.6.2 version is available
and was actually used for the present report.
The demo example works flawlessly in the Python2 jupyter-qtconsole (now
deprecated), and should also similarly work in the environments like nteract
and JupyterLab (haven't tried though).
Attn: the demo generating data is about 16Mb, but the key difference is,
likely, Qt interaction with cantor. Any other example would suffice instead.
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