Prevent test from depending on repr(long) in Py2.

tests/run/numpy_attributes.pyx

@@ -19,7 +19,7 @@ cnp.import_array()
 )
 def access_shape():
     """
-    >>> access_shape()
+    >>> print(access_shape())
     10
     """
     cdef cnp.ndarray[double, ndim=2, mode='c'] array_in = \
@@ -37,7 +37,7 @@ def access_shape():
 )
 def access_size():
     """
-    >>> access_size()
+    >>> print(access_size())
     100
     """
     cdef cnp.ndarray[double, ndim=2, mode='c'] array_in = \
@@ -56,8 +56,11 @@ def access_size():
 )
 def access_strides():
     """
-    >>> access_strides()
-    (80, 8)
+    >>> x, y = access_strides()
+    >>> print(x)
+    80
+    >>> print(y)
+    8
     """
     cdef cnp.ndarray[double, ndim=2, mode='c'] array_in = \
         1e10 * np.ones((10, 10), dtype=np.float64)