Py3 test fix

tests/run/numpy_memoryview.pyx

@@ -5,6 +5,8 @@
 Test slicing for memoryviews and memoryviewslices
 """
 
+import sys
+
 cimport numpy as np
 import numpy as np
 cimport cython
@@ -423,9 +425,13 @@ cdef packed struct StructArray:
 def test_memslice_structarray(data, dtype):
     """
     >>> def b(s): return s.encode('ascii')
+    >>> def to_byte_values(b):
+    ...     if sys.version_info[0] >= 3: return list(b)
+    ...     else: return map(ord, b)
+
     >>> data = [(range(4), b('spam\\0')), (range(4, 8), b('ham\\0\\0')), (range(8, 12), b('eggs\\0'))]
     >>> dtype = np.dtype([('a', '4i'), ('b', '5b')])
-    >>> test_memslice_structarray([(L, list(map(ord, s))) for L, s in data], dtype)
+    >>> test_memslice_structarray([(L, to_byte_values(s))) for L, s in data], dtype)
     0
     1
     2