Description of problem:
Soundconverter crashes on start since updating to 4.1.0

Version-Release number of selected component:
soundconverter-4.1.0-1.fc42

Additional info:
reporter:       libreport-2.17.15
kernel:         6.15.6-200.fc42.x86_64
cmdline:        /usr/bin/python3 -sP /usr/bin/soundconverter
cgroup:         0::/user.slice/user-1000.slice/user/app.slice/app-gnome-soundconverter-33956.scope
uid:            1000
reason:         soundconverter:40:<module>:TypeError: 'NoneType' object is not subscriptable
executable:     /usr/bin/soundconverter
type:           Python3
package:        soundconverter-4.1.0-1.fc42
runlevel:       N 5
exception_type: TypeError
crash_function: module
interpreter:    python3-3.13.5-1.fc42.x86_64
comment:        Soundconverter crashes on start since updating to 4.1.0

Truncated backtrace:
soundconverter:40:<module>:TypeError: 'NoneType' object is not subscriptable

Traceback (most recent call last):
  File "/usr/bin/soundconverter", line 40, in <module>
    SOURCE_PATH = os.path.dirname(files("soundconverter")[0].locate())
                                  ~~~~~~~~~~~~~~~~~~~~~~~^^^
TypeError: 'NoneType' object is not subscriptable

Local variables in innermost frame:
__name__: '__main__'
__doc__: 'SoundConverter Launcher.'
__package__: None
__loader__: <_frozen_importlib_external.SourceFileLoader object at 0x7f3406e3ba50>
__spec__: None
__annotations__: {}
__builtins__: <module 'builtins' (built-in)>
__file__: '/usr/bin/soundconverter'
__cached__: None
gettext: <module 'gettext' from '/usr/lib64/python3.13/gettext.py'>
locale: <module 'locale' from '/usr/lib64/python3.13/locale.py'>
os: <module 'os' (frozen)>
site: <module 'site' (frozen)>
sys: <module 'sys' (built-in)>
files: <function files at 0x7f34069d0180>
metadata: <function metadata at 0x7f34069cff60>
OptionGroup: <class 'optparse.OptionGroup'>
OptionParser: <class 'optparse.OptionParser'>
_: <function gettext at 0x7f3406d66020>
soundconverter_metadata: <importlib.metadata._adapters.Message object at 0x7f34069dbe00>
NAME: 'soundconverter'
VERSION: '4.1.0'