Launching GUIs fail with Python 3.13.0

[vt-max]

Testing with Hans shows problems with loading the GUIs when running on Python 3.13.0. This seems related to the following issue:

• win 10 Python-3.13.0 tkinter fails in venv python/cpython#125235

This should be resolved by Python 3.13.1 or by using Python 3.12.x for now. A workaround is available by setting the environment variable TCL_LIBRARY in scripts/ikobconfig.bat and scripts/ikobrunner.bat:

# Don't forget to replace \<user>\
set TCL_LIBRARY=C:\Users\<user>\AppData\Local\Programs\Python\Python313\tcl\tcl8.6

This was tested and can be a suitable workaround for the time being.

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Make sure to remove the notice in README introduced in:

• Add notice to README on Python 3.13.0 issue #79.

[vt-max]

Maybe we should update the README to indicate that 3.12 should be used and 3.13 is to be avoided for now due to this TCL issue. Once > 3.13.0 is available, that statement can be removed again.

[vt-max]

During user support sessions we tried to install IKOB using Python version 3.13.1 on Windows. This installs and runs OK. This confirms that the issue observed in Python 3.13.0 is avoided/resolved by adopting the latest (patch) version 3.13.0 as expected.