[Python console] prevent crash

[mwganson]

Forum topic: https://forum.freecadweb.org/viewtopic.php?f=8&t=70732

Crash occurs when pasting the following into the python console:

if True:
    print('ß')
    print('ß')

There might be a better way to fix the issue, which seems almost certainly related to the use of non-ASCII characters.

[berndhahnebach]

for feature branch PR_7323. Pipeline 606464892 was triggered at 99b42a5. All CI branches and pipelines.

[donovaly]

@wwmayer , I would like to have this in for 0.20.1. It looks straight forward, but you might want to have a look if more needs to be done.

[al-right]

I am really not into the code base, but maybe this is of some help:
Could the toLatin1() that mfro mentions in:
https://forum.freecadweb.org/viewtopic.php?p=615500#p615500
, be related to back when FreeCAD used Python 2 prior to version 0.19?

Python 3 uses UTF-8 as default: https://peps.python.org/pep-3120/
Again - I am just guessing. Thanks :)

[wwmayer]

Fixes the crash and the UTF-8 issue: c4547c0
@donovaly The change should be backported

[donovaly]

Thanks!
Backported.