Since the last change to posixmodule.c(Revision 2.332) 
by Martin,
test_os.py fails on my Linux box.

The reason is that when an os.stat object is accessed 
through
obj.attr or obj[index], they do not always represent the 
same
type.

Take, for example, st_atime, st_ctime and st_mtime.
With Martin's change, if they're accessed like 
stat_obj.st_atime,
it returns a float value.
On the other hand, stat_obj[stat.ST_ATIME] still 
remains to return
an integer value.

Here is the result of running test_os.py(abbreviated) ::

test_tempnam (__main__.TemporaryFileTests) ... ok
test_tmpfile (__main__.TemporaryFileTests) ... ok
test_tmpnam (__main__.TemporaryFileTests) ... ok
test_stat_attributes (__main__.StatAttributeTests) ... 
FAIL

[snip]

==========================================
============================
FAIL: test_stat_attributes (__main__.StatAttributeTests)
-------------------------------------------------------
---------------
Traceback (most recent call last):
  File "./test_os.py", line 115, in test_stat_attributes
    result[getattr(stat, name)])
AssertionError: 1106224156.927747 != 1106224156

-------------------------------------------------------
---------------
Ran 23 tests in 0.032s

FAILED (failures=1)

Logged In: YES 
user_id=21627

Thanks for the report. Fixed in test_os.py 1.28