From 6a119c982463097aebc8d004fc731b424721a650 Mon Sep 17 00:00:00 2001
From: Eric Wieser <wieser.eric@gmail.com>
Date: Tue, 1 Aug 2017 17:39:11 +0000
Subject: BUG: Be explicit about allowing all integer types in matrix
 exponentiation

Fixes gh-9506, unsigned exponentiation
---
 numpy/matrixlib/defmatrix.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'numpy/matrixlib/defmatrix.py')

diff --git a/numpy/matrixlib/defmatrix.py b/numpy/matrixlib/defmatrix.py
index 2aed3ebde..e016b5f4c 100644
--- a/numpy/matrixlib/defmatrix.py
+++ b/numpy/matrixlib/defmatrix.py
@@ -137,7 +137,7 @@ def matrix_power(M, n):
     M = asanyarray(M)
     if M.ndim != 2 or M.shape[0] != M.shape[1]:
         raise ValueError("input must be a square array")
-    if not issubdtype(type(n), int):
+    if not issubdtype(type(n), N.integer):
         raise TypeError("exponent must be an integer")
 
     from numpy.linalg import inv
-- 
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