Update lib/matplotlib/cbook/__init__.py

apaszke · QuLogic · web-flow · commit 8e57a9a1776a · 2020-03-12T11:47:11.000+01:00
Co-Authored-By: Elliott Sales de Andrade &lt;quantum.analyst@gmail.com&gt;
diff --git a/lib/matplotlib/cbook/__init__.py b/lib/matplotlib/cbook/__init__.py
@@ -2016,8 +2016,8 @@ def _unfold(arr, axis, size, step):
     -------
     windows : ndarray, shape (N_1, ..., 1 + (N_axis-size)/step, ..., N_k, size)
     """
-    new_shape = list(arr.shape) + [size]
-    new_strides = list(arr.strides) + [arr.strides[axis]]
+    new_shape = [*arr.shape, size]
+    new_strides = [*arr.strides, arr.strides[axis]]
     new_shape[axis] = (new_shape[axis] - size) // step + 1
     new_strides[axis] = new_strides[axis] * step
     return np.lib.stride_tricks.as_strided(arr,
