minor

Chilipp · Chilipp · commit 00ddbb52d633 · 2018-12-19T23:41:09.000+01:00
diff --git a/psyplot_gui/main.py b/psyplot_gui/main.py
@@ -590,7 +590,7 @@ def set_central_widget(self, name):
             new._set_central_action.setChecked(True)
             current.show_plugin()
             current.to_dock(self)
-            new_width = dock_widths.pop(new)
+            new_width = dock_widths.pop(new, None)
             if current.hidden:
                 current.hide_plugin()
             else:
