skip `convolution_matrix`
@@ -511,7 +511,8 @@ def fiedler_companion(a):
return c
-@_uarray.implements('convolution_matrix')
+# TODO: uncomment the following line when scipy >= 1.5.0 is supported in tests
+# @_uarray.implements('convolution_matrix')
def convolution_matrix(a, n, mode='full'):
"""Construct a convolution matrix.
