kazam报错TypeError: int() argument must be a string无法启动

问题

kazam打不开，点图标启动没反应，命令行启动报错

$ kazam
/usr/bin/kazam:32: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
Traceback (most recent call last):
  File "/usr/bin/kazam", line 146, in <module>
    from kazam.app import KazamApp
  File "/usr/lib/python3/dist-packages/kazam/app.py", line 35, in <module>
    from kazam.backend.prefs import *
  File "/usr/lib/python3/dist-packages/kazam/backend/prefs.py", line 478, in <module>
    prefs = Prefs()
  File "/usr/lib/python3/dist-packages/kazam/backend/prefs.py", line 121, in __init__
    self.read_config()
  File "/usr/lib/python3/dist-packages/kazam/backend/prefs.py", line 199, in read_config
    self.audio_source = int(self.config.get("main", "audio_source"))
TypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'

排查

感觉是版本依赖问题，尝试安装snap store和apt中的版本均无法解决问题。
查看本地版本信息

$ kazam --version
/usr/bin/kazam:32: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
kazam 1.4.5 'NCC-80102'

对应github上最新发行版为v1.5.7
看来apt版本太旧，果断使用pip进行安装，问题解决

sudo apt purge kazam
pip3 install kazam

参考

henrywoo/kazam: Kazam - Linux Desktop Screen Recorder and Broadcaster