FIX: let pandas IndexInt64 work for boxplot

jklymak · jklymak · commit e9532b064556 · 2019-02-09T18:16:20.000-08:00
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -3914,6 +3914,7 @@ def dopatch(xs, ys, **kwargs):
             positions = list(range(1, N + 1))
         elif len(positions) != N:
             raise ValueError(datashape_message.format("positions"))
+        positions = np.array(positions)
 
         # width
         if widths is None:
