wxGUI/mapswipe: call dialog Uninit only when dialog was actually crea…

…ted, fix for #833 (#836)
OSGeo · Jul 26, 2020 · c9eb39e · c9eb39e
1 parent 7da646a
commit c9eb39e
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/gui/wxpython/mapswipe/frame.py b/gui/wxpython/mapswipe/frame.py
@@ -754,7 +754,8 @@ def OnCloseWindow(self, event):
         self.GetFirstMap().Clean()
         self.GetSecondMap().Clean()
         self._mgr.UnInit()
-        self._inputDialog.UnInit()
+        if self._inputDialog:
+            self._inputDialog.UnInit()
         self.Destroy()