With the changes introduced for Issue4591, test_grp and test_pwd now fail on OS X systems when Python is run in 32-bit mode.

Previously, using a 64-bit/32-bit universal build of 2.7.3:

$ arch -i386 /usr/local/bin/python2.7 -c 'import grp; g=grp.getgrnam("nobody").gr_gid; print(g,type(g))'
(-2, <type 'int'>)
$ arch -x86_64 /usr/local/bin/python2.7 -c 'import grp; g=grp.getgrnam("nobody").gr_gid; print(g,type(g))'
(4294967294, <type 'int'>)

Now, with 2.7.4rc1:

$ arch -i386 /usr/local/bin/python2.7 -c 'import grp; g=grp.getgrnam("nobody").gr_gid; print(g,type(g))'
(4294967294L, <type 'long'>)
$ arch -x86_64 /usr/local/bin/python2.7 -c 'import grp; g=grp.getgrnam("nobody").gr_gid; print(g,type(g))'
(4294967294, <type 'int'>)

This results in test failures in both test_grp and test_pwd:

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FAIL: test_values (test.test_grp.GroupDatabaseTestCase)
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Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/test/test_grp.py", line 27, in test_values
    self.check_value(e)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/test/test_grp.py", line 19, in check_value
    self.assertIsInstance(value.gr_gid, int)
AssertionError: 4294967294L is not an instance of <type 'int'>

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======================================================================
FAIL: test_values (test.test_pwd.PwdTest)
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Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/test/test_pwd.py", line 23, in test_values
    self.assertIsInstance(e.pw_gid, int)
AssertionError: 4294967294L is not an instance of <type 'int'>

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