[New-bugs-announce] [issue10923] Python 2.7 hangs on Unicode+threading

Piotr Maślanka report at bugs.python.org
Mon Jan 17 03:17:33 CET 2011

New submission from Piotr Maślanka <piotr.maslanka at henrietta.com.pl>:

Python 2.7.1(x86 MSI), binary downloaded from python.org, hangs quite reliably. Code:

with open(threadspecific, 'ab') as x:
 txt = unicode(str_or_unicode_parameter).encode('utf8')

However, it doesn't hang if I insert a print statement between with and txt, with anything. Previous testing determined that it hangs on encode().

Aforementioned code is executed in a threading environment, and it hangs in thread that is spawned by master thread. Interpreter is left with an open file.

Same behaviour is repeatable on Python 2.5.1.

components: None
messages: 126390
nosy: henrietta
priority: normal
severity: normal
status: open
title: Python 2.7 hangs on Unicode+threading
versions: Python 2.7

Python tracker <report at bugs.python.org>

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