New submission from Nadeem Vawda:
[Split off from issue 19395]
The following code hangs after hitting a TypeError trying to pickle one
of the TextIOWrapper objects:
import multiprocessing
def read(f): return f.read()
files = [open(path) for path in 3 * ['/dev/null']]
pool = multiprocessing.Pool()
results = pool.map(read, files)
print(results)
This issue is present in 3.2, 3.3 and 3.4, but not in 2.7.
----------
components: Library (Lib)
messages: 201580
nosy: cantor, jnoller, nadeem.vawda, pitrou, python-dev, sbt, tim.peters
priority: normal
severity: normal
stage: needs patch
status: open
title: multiprocessing.Pool.map hangs if pickling argument raises an exception
type: behavior
versions: Python 3.3, Python 3.4
_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue19425>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
