matplotlib
diff --git a/‎lib/matplotlib/image.py
Copy file name to clipboardExpand all lines: lib/matplotlib/image.py
+4-2Lines changed: 4 additions & 2 deletions b/‎lib/matplotlib/image.py
Copy file name to clipboardExpand all lines: lib/matplotlib/image.py
+4-2Lines changed: 4 additions & 2 deletions
@@ -372,8 +372,10 @@ def _make_image(self, A, in_bbox, out_bbox, clip_bbox, magnification=1.0,
                     scaled_dtype = A.dtype
                 else:
                     scaled_dtype = np.float32
-                a_min = np.nanmin(A)
-                a_max = np.nanmax(A)
+                # old versions of numpy do not work with `np.nammin`
+                # and `np.nanmax` as inputs
+                a_min = np.ma.min(A)
+                a_max = np.ma.max(A)
                 # scale the input data to [.1, .9].  The Agg
                 # interpolators clip to [0, 1] internally, use a
                 # smaller input scale to identify which of the