[issue13139] multiprocessing.map skips finally blocks

[Daniel Wagner-Hall]

New submission from Daniel Wagner-Hall <dawagner at gmail.com>:

import random

from multiprocessing import Pool
from time import sleep

def Process(x):
  try:
    print x
    sleep(random.random())
    raise Exception('Exception: ' + x)
  finally:
    print 'Finally: ' + x

Pool(3).map(Process, ['1','2','3'])

Expect all three Finally blocks to be called (or at least, one Finally per x printed by line 8)

Actually, only one (occasionally two) are printed.

Same behaviour exhibited on dual-core Mac running OSX 10.6 with Python 2.7, and single core Ubuntu running Python 2.6.

----------
components: None
messages: 145201
nosy: illicitonion
priority: normal
severity: normal
status: open
title: multiprocessing.map skips finally blocks
type: behavior
versions: Python 2.6, Python 2.7

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13139>
_______________________________________