Index: Lib/test/test_array.py
===================================================================
--- Lib/test/test_array.py	(revision 65961)
+++ Lib/test/test_array.py	(working copy)
@@ -1011,16 +1011,17 @@
     minitemsize = 8
 
     def test_alloc_overflow(self):
+        from sys import maxsize
         a = array.array('d', [-1]*65536)
         try:
-            a *= 65536
+            a *= maxsize//65536 + 1
         except MemoryError:
             pass
         else:
             self.fail("a *= 2**16 didn't raise MemoryError")
         b = array.array('d', [ 2.71828183, 3.14159265, -1])
         try:
-            b * 1431655766
+            b * maxsize//3 + 1
         except MemoryError:
             pass
         else: