Traceback (most recent call last):
  File "/usr/bin/bottles", line 42, in <module>
    from bottles import main
  File "/usr/share/bottles/bottles/main.py", line 33, in <module>
    from bottles.window import MainWindow
  File "/usr/share/bottles/bottles/window.py", line 33, in <module>
    from bottles.backend.managers.manager import Manager
  File "/usr/share/bottles/bottles/backend/managers/manager.py", line 46, in <module>
    from bottles.backend.managers.installer import InstallerManager
  File "/usr/share/bottles/bottles/backend/managers/installer.py", line 29, in <module>
    from bottles.dialogs.generic import MessageDialog
  File "/usr/share/bottles/bottles/dialogs/generic.py", line 20, in <module>
    gi.require_version('GtkSource', '4')
  File "/usr/lib64/python3/site-packages/gi/__init__.py", line 129, in require_version
    raise ValueError('Namespace %s not available for version %s' %
ValueError: Namespace GtkSource not available for version 4