[New-bugs-announce] [issue36736] Python crashes when calling win32file.LockFileEx

[Anand Arumugam]

New submission from Anand Arumugam <anand.arumug at gmail.com>:

Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 14:57:15) [MSC v.1915 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import win32file
>>> import win32con
>>> import platform
>>> h = win32file.CreateFile(f'd:\\temp\\{platform.node()}.lock', (win32file.GENERIC_READ | win32file.GENERIC_WRITE), 0, None, win32con.CREATE_NEW, 0, None)
>>> win32file.LockFileEx(h, win32con.LOCKFILE_EXCLUSIVE_LOCK, 5, 5, None)

The moment I hit enter, python command prompt crashes. I'm unable to attach the crash dump file. If you cannot repro the crash, let me know.

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assignee: terry.reedy
components: IDLE, Windows
messages: 340947
nosy: paul.moore, steve.dower, terry.reedy, tim.golden, yapydev, zach.ware
priority: normal
severity: normal
status: open
title: Python crashes when calling win32file.LockFileEx
type: crash
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36736>
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