Fix NumPy FutureWarning for non-tuple indexing.

QuLogic · QuLogic · commit ea8c13e3f44a · 2018-08-16T02:48:57.000-04:00
This fixes the warning:
.../matplotlib/mlab.py:395: FutureWarning: Using a non-tuple sequence
for multidimensional indexing is deprecated; use `arr[tuple(seq)]`
instead of `arr[seq]`. In the future this will be interpreted as an
array index, `arr[np.array(seq)]`, which will result either in an error
or a different result.
diff --git a/lib/matplotlib/mlab.py b/lib/matplotlib/mlab.py
@@ -392,7 +392,7 @@ def detrend_mean(x, axis=None):
 
     ind = [slice(None)] * x.ndim
     ind[axis] = np.newaxis
-    return x - x.mean(axis)[ind]
+    return x - x.mean(axis)[tuple(ind)]
 
 
 def detrend_none(x, axis=None):
