[mcstas-users] Current McStas/McXtrace releases and Python 3.10

[Peter Kjær Willendrup]

Dear all,


We have recently become aware of a couple of issues that arise with all current releases of McStas (2.7.1 / 3.1) and McXtrace (1.7 / 3.0)


On system with the newest Python versions (3.10 and beyond) you may experience that

* mcgui/mxgui fails on execution, see  https://github.com/McStasMcXtrace/McCode/issues/1270 for details
* mcplot/mxplot fails on execution, see https://github.com/McStasMcXtrace/McCode/issues/1281 for details


In case you experience these problems you may replace the following files within your installation folder:

tools/Python/mcgui/viewclasses.py - please replace by https://raw.githubusercontent.com/McStasMcXtrace/McCode/mccode-3/tools/Python/mcgui/viewclasses.py
(mxgui in case of McXtrace)

tools/Python/mccodelib/pqtgfrontend.py - please replace by https://raw.githubusercontent.com/McStasMcXtrace/McCode/mccode-3/tools/Python/mccodelib/pqtgfrontend.py


New stable releases of McStas/McXtrace should be released during November/December this year.



Best and sorry for the inconvenience,

Peter Willendrup


Peter Kjær Willendrup
Forskningsingeniør, Specialkonsulent
Næstformand for DTU Fysik LSU

DTU Physics


[cid:b6339554-7f28-441d-9f31-5944f811397c at win.dtu.dk]


Technical University of Denmark


[cid:e108e480-fcab-46e2-9531-b38165079572 at win.dtu.dk]



Department of Physics
Fysikvej
Building 307
DK-2800 Kongens Lyngby
Direct +45 2125 4612
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pkwi at fysik.dtu.dk<mailto:pkwi at fysik.dtu.dk>

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