New submission from Richard Oudkerk:
With Python 2.7 on Windows the following crashes with an assertion:
>>> import os
[43042 refs]
>>> f = open("foobar", "wb")
[43048 refs]
>>> os.close(f.fileno())
[43048 refs]
>>> f.close()
<Failed assertion>
A box pops up with
Program: C:\Repos\cpython-27\PCbuild\python_d.exe
File: f:\dd\vctools\crt_bld\self_x86\crt\src\close.c
Line: 48
Expression: (_osfile(fh) & FOPEN)
Python 3.2 and 3.3 give IOError(EBADF, ...) as expected.
Compare #15261 and #15263.
----------
messages: 170188
nosy: sbt
priority: normal
severity: normal
stage: needs patch
status: open
title: file,close() can fail assert on Windows in 2.7
type: crash
versions: Python 2.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue15904>
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