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Author ocean-city
Recipients ocean-city
Date 2009-01-10.11:11:47
SpamBayes Score 0.0013158543
Marked as misclassified No
Message-id <>
Due to r68455, os.listdir fails on debug build (windows).


Python 2.7a0 (trunk, Jan 10 2009, 18:36:15) [MSC v.1200 32 bit (Intel)] 
on win32

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>>> import os
[33639 refs]
>>> os.listdir(".")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
WindowsError: [Error 0] この操作を正しく終了しました。: './*.*'
[33678 refs]


Probably a following XP Buildbot error comes from same reason.

This error is raised near Modules/posixmodule.c (2205)

	result = FindNextFile(hFindFile, &FileData);
	/* FindNextFile sets error to ERROR_NO_MORE_FILES if
	   it got to the end of the directory. */
	if (!result && GetLastError() != ERROR_NO_MORE_FILES) {

GetLastError() is sometimes 0 when should be ERROR_NO_MORE_FILES.
This happens because, on debug build, Py_END_ALLOW_THREADS finally
reaches PyThread_get_key_value in Python/thread_nt.h, and TlsGetValue
in it calls SetValueError(0) when function succeeds. See

I've attached the patch to fix this. I believe LastError set by
TlsGetValue on its failure is not used anywhere.
Date User Action Args
2009-01-10 11:11:51ocean-citysetrecipients: + ocean-city
2009-01-10 11:11:51ocean-citysetmessageid: <>
2009-01-10 11:11:49ocean-citylinkissue4906 messages
2009-01-10 11:11:48ocean-citycreate