[issue3309] missing lock release in BZ2File_iternext()

[STINNER Victor]

New submission from STINNER Victor <haypo at users.sourceforge.net>:

Call BZ2File_iternext() on closed file doesn't release the lock.

Example:
-----------
import bz2
obj = bz2.BZ2File('/etc/issue')
obj.close()
try:
    # acquire the lock
    obj.next()
except ValueError, err:
    # but don't release the lock
    print err
# DEAD LOCK here
obj.readlines()
-----------

Attached patch fixes this bug.

----------
components: Library (Lib)
files: bz2_lock.patch
keywords: patch
messages: 69362
nosy: haypo
severity: normal
status: open
title: missing lock release in BZ2File_iternext()
versions: Python 2.6
Added file: http://bugs.python.org/file10837/bz2_lock.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3309>
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