Merge pull request #12707 from ImportanceOfBeingErnest/fix-tk-closedfigure-mainloop

tacaswell · web-flow · commit 166d63821dfd · 2018-11-04T00:25:50.000-04:00
FIX: tk error when closing first pyplot figure
diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py
@@ -1037,4 +1037,6 @@ def trigger_manager_draw(manager):
 
     @staticmethod
     def mainloop():
-        Tk.mainloop()
+        managers = Gcf.get_all_fig_managers()
+        if managers:
+            managers[0].window.mainloop()
