#150 RuntimeError on python 3.13.5

[Ben]

Program does not launch after python 3.13.5 update

Traceback (most recent call last):
  File "/sbin/mcomix", line 8, in <module>
    sys.exit(main())
             ~~~~^^
  File "/usr/lib/python3.13/site-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

[Ark]

Thank you for your bug report. Fixed.