Hi
I have the same issue:
$ python3 --version
Python 3.13.5
$ mcomix
Traceback (most recent call last):
File "/usr/bin/mcomix", line 8, in <module>
sys.exit(main())
~~~~^^
File "/usr/lib/python3/dist-packages/mcomix/__main__.py", line 25, in main
mp.set_start_method('spawn')
~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/lib/python3.13/multiprocessing/context.py", line 247, in
set_start_method
raise RuntimeError('context has already been set')
RuntimeError: context has already been set
I suggest you ask for help on debian-python mailing list.
All the best
