$ soundconverter --debug
/usr/bin/soundconverter:34: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
  import pkg_resources
INFO: soundconverter, line 255, soundconverter 4.0.4
INFO: filelist.py, line 201, analysing file integrity
INFO: filelist.py, line 221, adding: 1 files
DEBUG: discoverer.py, line 138, found tag: 04 The Unforgiven.flac
DEBUG: discoverer.py, line 140,     musicbrainz-releasegroupid: e8f70201-8899-3f0c-9e07-5d6495bc8046
DEBUG: discoverer.py, line 140,     extended-comment: ORIGINALDATE=1991-08-12
DEBUG: discoverer.py, line 140,     musicbrainz-albumid: 4005d28d-7c24-4eec-aa7f-695fef776262
DEBUG: discoverer.py, line 140,     musicbrainz-albumartistid: 65f4f0c5-ef9e-490c-aee3-909e7ae6b2ab
DEBUG: discoverer.py, line 140,     album-artist: Metallica
DEBUG: discoverer.py, line 140,     album-artist-sortname: Metallica
DEBUG: discoverer.py, line 140,     year: 1991
DEBUG: discoverer.py, line 140,     date: 1991
DEBUG: discoverer.py, line 140,     album: Metallica
DEBUG: discoverer.py, line 140,     album-disc-count: 1
DEBUG: discoverer.py, line 140,     album-disc-number: 1
DEBUG: discoverer.py, line 140,     track-count: 12
DEBUG: discoverer.py, line 140,     musicbrainz-trackid: 51d82245-53de-4f1a-864b-ca1960692ac3
DEBUG: discoverer.py, line 140,     title: The Unforgiven
DEBUG: discoverer.py, line 140,     musicbrainz-artistid: 65f4f0c5-ef9e-490c-aee3-909e7ae6b2ab
DEBUG: discoverer.py, line 140,     artist: Metallica
DEBUG: discoverer.py, line 140,     artist-sortname: Metallica
DEBUG: discoverer.py, line 140,     isrc: GBF089190016
DEBUG: discoverer.py, line 140,     musicbrainz-releasetrackid: dae8259b-81a7-4119-9729-2cd0f7b90303
DEBUG: discoverer.py, line 140,     track-number: 4
DEBUG: discoverer.py, line 140,     acoustid-id: 5f31d71f-f862-4d08-ae6a-bb46b2358369
DEBUG: discoverer.py, line 140,     audio-codec: Free Lossless Audio Codec (FLAC)
**
ERROR:../pygobject/gi/gimodule.c:1840:_wrap_pyg_hook_up_vfunc_implementation: assertion failed: (G_TYPE_IS_CLASSED (implementor_gtype))
Bail out! ERROR:../pygobject/gi/gimodule.c:1840:_wrap_pyg_hook_up_vfunc_implementation: assertion failed: (G_TYPE_IS_CLASSED (implementor_gtype))
[1]    11791 IOT instruction (core dumped)  soundconverter --debug
$ soundconverter --debug
/usr/bin/soundconverter:34: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
  import pkg_resources
INFO: soundconverter, line 255, soundconverter 4.0.4
INFO: filelist.py, line 201, analysing file integrity
INFO: filelist.py, line 221, adding: 1 files
DEBUG: discoverer.py, line 138, found tag: sample-15s.mp3
DEBUG: discoverer.py, line 140,     encoder: Lavf57.83.100
DEBUG: discoverer.py, line 140,     container-format: ID3 tag
DEBUG: discoverer.py, line 140,     channel-mode: stereo
DEBUG: discoverer.py, line 140,     audio-codec: MPEG-1 Layer 3 (MP3)
**
ERROR:../pygobject/gi/gimodule.c:1840:_wrap_pyg_hook_up_vfunc_implementation: assertion failed: (G_TYPE_IS_CLASSED (implementor_gtype))
Bail out! ERROR:../pygobject/gi/gimodule.c:1840:_wrap_pyg_hook_up_vfunc_implementation: assertion failed: (G_TYPE_IS_CLASSED (implementor_gtype))
[1]    11845 IOT instruction (core dumped)  soundconverter --debug