Message 133023 - Python tracker

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Author	vstinner
Recipients	asksol, flox, jnoller, macfreek, vstinner
Date	2011-04-05.12:14:00
SpamBayes Score	0.0015050827
Marked as misclassified	No
Message-id	<1302005640.64.0.00697994651415.issue9592@psf.upfronthosting.co.za>
In-reply-to

Content
> 1) A multiprocessing worker can not return (return, not raise!) an > Exception. (...) raise an error if multiple arguments are required: > TypeError: ('__init__() takes exactly 2 arguments (1 given)', > <class '__main__.MyException'>, ()) This problem comes from pickle, not multiprocessing: issue #1692335. > 2) A multiprocessing worker can not return an hashlib Object. > If this is attempted, pickle returns an error: It is related to pickle and hashlib: #11771

> 1) A multiprocessing worker can not return (return, not raise!) an
> Exception. (...) raise an error if multiple arguments are required:
> TypeError: ('__init__() takes exactly 2 arguments (1 given)', 
> <class '__main__.MyException'>, ())

This problem comes from pickle, not multiprocessing: issue #1692335.

> 2) A multiprocessing worker can not return an hashlib Object.
> If this is attempted, pickle returns an error:

It is related to pickle and hashlib: #11771

History
Date	User	Action	Args
2011-04-05 12:14:00	vstinner	set	recipients: + vstinner, macfreek, jnoller, asksol, flox
2011-04-05 12:14:00	vstinner	set	messageid: <1302005640.64.0.00697994651415.issue9592@psf.upfronthosting.co.za>
2011-04-05 12:14:00	vstinner	link	issue9592 messages
2011-04-05 12:14:00	vstinner	create