savefig error: tkinter.TclError: invalid command name "." · Issue #17388 · matplotlib/matplotlib

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Already on GitHub? Sign in to your account Traceback (most recent call last): File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\backend_bases.py", line 2785, in _wait_cursor_for_draw_cm self.set_cursor(cursors.WAIT) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\backends\_backend_tk.py", line 544, in set_cursor window.configure(cursor=cursord[cursor]) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1485, in configure return self._configure('configure', cnf, kw) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1476, in _configure self.tk.call(_flatten((self._w, cmd)) + self._options(cnf)) _tkinter.TclError: invalid command name "." During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:/Users/cyrieln/workspaces/LandingSim/src/AdnLandingSim3d/dev/test.py", line 17, in <module> fig.savefig('test.png') File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\figure.py", line 2203, in savefig self.canvas.print_figure(fname, **kwargs) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\backend_bases.py", line 2105, in print_figure **kwargs) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\backends\backend_agg.py", line 514, in print_png FigureCanvasAgg.draw(self) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\backends\backend_agg.py", line 392, in draw else nullcontext()): File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\contextlib.py", line 81, in __enter__ return next(self.gen) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\backend_bases.py", line 2788, in _wait_cursor_for_draw_cm self.set_cursor(self._lastCursor) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\site-packages\matplotlib\backends\_backend_tk.py", line 544, in set_cursor window.configure(cursor=cursord[cursor]) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1485, in configure return self._configure('configure', cnf, kw) File "C:\Users\cyrieln\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1476, in _configure self.tk.call(_flatten((self._w, cmd)) + self._options(cnf)) _tkinter.TclError: invalid command name "." Process finished with exit code 1

Matplotlib version

Operating system: Win10

Matplotlib version: 3.2.1

Matplotlib backend TkAgg

Python version: 3.7

This seems to work:

diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py
index 5ad469820..da0bd60d5 100644
--- a/lib/matplotlib/backends/_backend_tk.py
+++ b/lib/matplotlib/backends/_backend_tk.py
@@ -541,8 +545,12 @@ class NavigationToolbar2Tk(NavigationToolbar2, tk.Frame):
     def set_cursor(self, cursor):
         window = self.canvas.get_tk_widget().master
-        window.configure(cursor=cursord[cursor])
-        window.update_idletasks()
+        try:
+            window.configure(cursor=cursord[cursor])
+        except tkinter.TclError:
+            pass
+        else:
+            window.update_idletasks()
     def _Button(self, text, image_file, toggle, command):
         image = (tk.PhotoImage(master=self, file=image_file)