FIX: handle the integer case

tacaswell · tacaswell · commit 9afa10f20635 · 2019-03-18T22:41:50.000-04:00
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -46,9 +46,13 @@ def histogram_bin_edges(arr, bins, range=None, weights=None):
             # update numpy, or pick a manual number of bins
             return np.histogram(arr, bins, range, weights)[1]
         else:
-            # not strictly the behavior of histogram_bin_edges, but
-            # easier to not bother with the linspace here
-            return bins
+            if bins is None:
+                # hard-code numpy's default
+                bins = 10
+            if range is None:
+                range = np.nanmin(arr), np.manmax(arr)
+
+            return np.linspace(*range, bins + 1)
 
 
 _log = logging.getLogger(__name__)
