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user_id=1049561

I'm seeing this problem still in Python 2.4.1 on Windows.

Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 
bit (Intel)] on win32


C:\src\Twisted>trial -r iocp twisted.test.test_iutils
Using twisted.internet.iocpreactor reactor
Running 6 tests.
  twisted.test.test_iutils
    UtilsTestCase
      testOutput ...                                                       ?
[32;1m[OK]?[0m
      testOutputAndValue ...                                               ?
[32;1m[OK]?[0m
      testOutputSignal ...                                                 ?
[32;1m[OK]?[0m
      
testOutputWithErrorCollected ...                                     ?
[32;1m[OK]?[0m
      
testOutputWithErrorIgnored ...                                       ?
[32;1m[OK]?[0m
      testValue ...                                                        ?
[32;1m[OK]?[0m

-------------------------------------------------------------------------------
Ran 6 tests in 1.513s

PASSED (successes=6)
Exception in thread 
iocpreactor.process_waiter.ProcessWaiter.waitForProcessExi
t
pid=2156 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
  File "C:\Python24\lib\threading.py", line 442, in __bootstrap
  File "C:\Python24\lib\threading.py", line 422, in run
  
File "C:\src\Twisted\twisted\internet\iocpreactor\process_wait
er.py", line 165, in doWaitForProcessExit
exceptions.TypeError: 'NoneType' object is not callable