Import MatplotlibDeprecationWarning from private module

efiring · efiring · commit 3fea6b899c41 · 2021-01-14T13:15:43.000-10:00
diff --git a/lib/matplotlib/tests/test_collections.py b/lib/matplotlib/tests/test_collections.py
@@ -13,7 +13,7 @@
 from matplotlib.collections import (Collection, LineCollection,
                                     EventCollection, PolyCollection)
 from matplotlib.testing.decorators import check_figures_equal, image_comparison
-from matplotlib.cbook.deprecation import MatplotlibDeprecationWarning
+from matplotlib._api.deprecation import MatplotlibDeprecationWarning
 
 
 def generate_EventCollection_plot():
