FIX: make the show API on webagg consistent with others

tacaswell · tacaswell · commit 3af4be1f40fc · 2022-02-09T23:26:21.000-05:00
diff --git a/lib/matplotlib/backends/backend_webagg.py b/lib/matplotlib/backends/backend_webagg.py
@@ -302,7 +302,7 @@ class _BackendWebAgg(_Backend):
     FigureManager = core.FigureManagerWebAgg
 
     @staticmethod
-    def show():
+    def show(*, block=None):
         WebAggApplication.initialize()
 
         url = "http://{address}:{port}{prefix}".format(
