_DummyThread' object has no attribute '_Thread__block

[Mark Gius]

[Impact]

Based on the test script available at the upstream issue link, the exception is thrown in programs that use threads and os.fork() (like could be the case with subprocess).

As reported upstream, the exception when a "dummy" thread is in the threading module's active list after a fork().

[Test Case]

Run the following program, available in the upstream issue:

http://bugs.python.org/file25511/bad-thread.py

to reproduce the problem.

[Regression Potential]

None seen at the moment.
Upstream patch contains also a test case to address this issue:

http://hg.python.org/cpython/rev/ab9d6c4907e7

[Mark Gius (markgius)]

The affects python2.7 2.7.3-0ubuntu3.1, as well as the current python release in debian testing (2.7.3~rc2-2.1)

[Matthias Klose (doko)]

fixed in quantal and raring, should be updated for precise

[Milo Casagrande (milo)]

Hi,

has this been fixed and released also for precise?
I took a look at the quantal and raring packages, but couldn't find the patch of the upstream bug in there either.

We are deploying a Linaro Python based web-app, and we are seeing that error quite often.

[Steve Langasek (vorlon)]

The Precise Pangolin has reached end of life, so this bug will not be fixed for that release