Message 58780 - Python tracker

Author	gvanrossum
Recipients	Rhamphoryncus, christian.heimes, gvanrossum, tim_one
Date	2007-12-18.22:19:55
SpamBayes Score	0.0810881
Marked as misclassified	No
Message-id	<ca471dc20712181419w6877193dmda458e8c011a6bc8@mail.gmail.com>
In-reply-to	<1198014996.32.0.0211756767442.issue1635@psf.upfronthosting.co.za>

Content
> Historical note: Guido is probably thinking of "the old" pickle and > marshal here, which did have problems with inf and NaN on Windows (as in > they didn't work at all). Michael Hudson changed them to use special > bit patterns instead, IIRC for Python 2.5. In pickle.py, protocol 0 (still the default in 2.6) uses repr(x) to write a float and float(s) to convert that back to input. Maybe you're thinking of marshal, which is more sophisticated.

> Historical note:  Guido is probably thinking of "the old" pickle and
> marshal here, which did have problems with inf and NaN on Windows (as in
> they didn't work at all).  Michael Hudson changed them to use special
> bit patterns instead, IIRC for Python 2.5.

In pickle.py, protocol 0 (still the default in 2.6) uses repr(x) to
write a float and float(s) to convert that back to input. Maybe you're
thinking of marshal, which is more sophisticated.

History
Date	User	Action	Args
2007-12-18 22:19:55	gvanrossum	set	spambayes_score: 0.0810881 -> 0.0810881 recipients: + gvanrossum, tim_one, Rhamphoryncus, christian.heimes
2007-12-18 22:19:55	gvanrossum	link	issue1635 messages
2007-12-18 22:19:55	gvanrossum	create