Run flush events on wx only

QuLogic · QuLogic · commit 6c7ab77fa7a9 · 2022-04-28T04:35:12.000-04:00
As apparently dropping this was needed for Tk.
diff --git a/lib/matplotlib/tests/test_backends_interactive.py b/lib/matplotlib/tests/test_backends_interactive.py
@@ -196,7 +196,9 @@ def _test_thread_impl():
     plt.pause(0.5)  # flush_events fails here on at least Tkagg (bpo-41176)
     future.result()  # Joins the thread; rethrows any exception.
     plt.close()  # backend is responsible for flushing any events here
-    fig.canvas.flush_events()  # TODO: debug why WX needs this only on py3.8
+    if plt.rcParams["backend"].startswith("WX"):
+        # TODO: debug why WX needs this only on py3.8
+        fig.canvas.flush_events()
 
 
 _thread_safe_backends = _get_testable_interactive_backends()
