Merge pull request #12593 from meeseeksmachine/auto-backport-of-pr-12581-on-v3.0.x

jklymak · web-flow · commit 153bacf8f7ce · 2018-10-22T14:27:06.000-07:00
Backport PR #12581 on branch v3.0.x (Fix hist() error message)
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -6550,7 +6550,7 @@ def hist(self, x, bins=None, range=None, density=None, weights=None,
             if len(color) != nx:
                 error_message = (
                     "color kwarg must have one color per data set. %d data "
-                    "sets and %d colors were provided" % (len(color), nx))
+                    "sets and %d colors were provided" % (nx, len(color)))
                 raise ValueError(error_message)
 
         # If bins are not specified either explicitly or via range,
