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 <rep...@bugs.python.org> <http://bugs.python.org/issue19425> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com