Version-Release number of selected component:
gnome-gmail-2.0.1-1.fc23

Additional info:
reporter:       libreport-2.6.4
cmdline:        /usr/bin/python3 -tt /usr/share/gnome-gmail/gnomegmail.py
executable:     /usr/share/gnome-gmail/gnomegmail.py
kernel:         4.4.7-300.fc23.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
Gtk.py:83:_extract_handler_and_args:AttributeError: Handler onUserSelClose not found

Traceback (most recent call last):
  File "/usr/lib64/python3.4/site-packages/gi/overrides/Gtk.py", line 103, in _builder_connect_callback
    handler, args = _extract_handler_and_args(obj_or_map, handler_name)
  File "/usr/lib64/python3.4/site-packages/gi/overrides/Gtk.py", line 83, in _extract_handler_and_args
    raise AttributeError('Handler %s not found' % handler_name)
AttributeError: Handler onUserSelClose not found

Local variables in innermost frame:
handler: None
obj_or_map: <__main__.do_preferred.<locals>.Handler object at 0x7fea0b7fad68>
handler_name: 'onUserSelClose'

Potential duplicate: bug 1264237