FIX: allow singleton labels in hist

jklymak · jklymak · commit 5258ec0aca79 · 2018-10-20T09:12:24.000-07:00
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -6758,6 +6758,8 @@ def hist(self, x, bins=None, range=None, density=None, weights=None,
             labels = [None]
         elif isinstance(label, str):
             labels = [label]
+        elif not np.iterable(label):
+            labels = [str(label)]
         else:
             labels = [str(lab) for lab in label]
 
