Merge pull request #16213 from meeseeksmachine/auto-backport-of-pr-15763-on-v3.1.x

timhoffm · web-flow · commit dc2da1da5b25 · 2020-01-14T20:41:36.000+01:00
Backport PR #15763 on branch v3.1.x (Skip webagg test if tornado is not available.)
diff --git a/lib/matplotlib/tests/test_backend_webagg.py b/lib/matplotlib/tests/test_backend_webagg.py
@@ -6,6 +6,7 @@
 
 @pytest.mark.parametrize("backend", ["webagg", "nbagg"])
 def test_webagg_fallback(backend):
+    pytest.importorskip("tornado")
     if backend == "nbagg":
         pytest.importorskip("IPython")
     env = dict(os.environ)
