
Traceback (most recent call last):


 "/home/local/SoftwareDownloads/quodlibet-fork/quodlibet/quodlibet/qltk/songlistcolumns.py", line 205, in _cdf

value = self._fetch_value(model, iter_)


 "/home/local/SoftwareDownloads/quodlibet-fork/quodlibet/quodlibet/qltk/songlistcolumns.py", line 311, in _fetch_value

return model.get_value(iter_).get(self.header_name, "")

AttributeError: 'NoneType' object has no attribute 'get'

Traceback (most recent call last):


 "/Users/igortkachenko/Tools/kivy-designer/venv/lib/python3.6/site-packages/kivy/uix/widget.py", line 265, in _widget_destructor


 "/Users/igortkachenko/Tools/kivy-designer/venv/lib/python3.6/site-packages/kivy/lang/builder.py", line 760, in unbind_widget


 "kivy/weakproxy.pyx", line 30, in kivy.weakproxy.WeakProxy.__getattr__
AttributeError: 'weakref' object has no attribute 'cline_in_traceback'
