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+ <H1>[pycrypto] python crypto with python 3.0 or 3.1</H1>

+ Grail Dane

+ <A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20python%20crypto%20with%20python%203.0%20or%203.1&In-Reply-To=b7338e009e16d0bf54dc7a5c34558de6%40localhost"

+ TITLE="[pycrypto] python crypto with python 3.0 or 3.1">grail69 at hotmail.com

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+ Thu Jan 14 18:32:04 CST 2010

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+<PRE>

+Hi

+Thanks for the speedy reply :)

+I am a little confused though as the doco for 3.1 says:

+PyVarObjectThis is an extension of PyObject that adds the ob_size field. This is only used for objects that have some notion of length. This type does not often appear in the Python/C API. It corresponds to the fields defined by the expansion of the PyObject_VAR_HEAD macro.This appears to be the same as what is written in the doco for 2.6.4 as well, which pycrypto seems to work with.

+Well i will keep looking to see what i can find out.

+CheersGrail

+> Date: Thu, 14 Jan 2010 10:07:36 +0100

+> From: <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">don at amberfisharts.com</A>

+> To: <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto at lists.dlitz.net</A>

+> Subject: Re: [pycrypto] python crypto with python 3.0 or 3.1

+>

+> Hi,

+>

+> as far as I know there hasn't been a move to port pyCrypto to python 3.x

+> so simply compiling against python 3.x is bound to fail!

+> If you try to port yourself and during that effort ran into this compiler

+> error then if you look at the documentation [1] or this blog post [2]

+> (it's

+> a bit outdated since the docs have been fixed in the meantime) you will

+> see

+> that the first few lines (besides other things) of a python extension type

+> have

+> changed from

+>

+> PyObject_HEAD_INIT(NULL)

+> 0, /* ob_size */

+> "myTypeName", /* tp_name */

+>

+> to

+>

+> PyVarObject_HEAD_INIT(NULL, 0)

+> "myTypeName", /* tp_name */

+>

+> If I recall correctly, the ob_size has be moved to a different structure

+> and no longer

+> is a member of PyTypeObject.

+> So to sum it up:

+> * no porting effort exist so far, AFAIK

+> * no, the error is not bogus

+>

+> sincerely yours

+> //Lorenz

+>

+> [1] <A HREF="http://docs.python.org/dev/py3k/extending/newtypes.html">http://docs.python.org/dev/py3k/extending/newtypes.html</A>

+> [2]

+> <A HREF="http://rhodesmill.org/brandon/2008/porting-a-c-extension-module-to-python-30/">http://rhodesmill.org/brandon/2008/porting-a-c-extension-module-to-python-30/</A>

+>

+> On Thu, 14 Jan 2010 07:52:59 +0000, Grail Dane <<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">grail69 at hotmail.com</A>>

+> wrote:

+> > Hi GuysI am new to the list but have recently run into this issue.Has

+> > there been any movement?Personally I am stuck when gcc tries to compile

+> > src/_fastmath.cwhich seems to die with an error about 'ob_size' member

+> not

+> > existing :(This seems to be bogus as I traced back the struct's to

+> include

+> > PyObject_VAR_HEADwhich does have this as member.Any further help on this

+> > would be appreciated ;)Cheers Grail>On Fri, Dec 04, 2009 at 11:44:00AM

+> > +0100, Tobias Koeck wrote:>>Is it possible to run python crypto with

+> python

+> > 3.0 or 3.1. If not is

+> >>>it planed to adjust?

+> >

+> >>Sure, and it'll happen sooner if somebody volunteers to do it. :-)

+> >

+> >>There will need to be be some strategy for Python 2.x compatibility, and

+>

+> >>the contributor(s) need to to meet the PyCrypto Code Submission

+> >>Requirements:

+> >

+> >><A HREF="http://www.dlitz.net/software/pycrypto/submission-requirements/">http://www.dlitz.net/software/pycrypto/submission-requirements/</A>

+> >

+> >>--

+> >>Dwayne C. Litzenberger <dlitz at dlitz.net>

+> >> Key-signing key - 19E1 1FE8 B3CF F273 ED17 4A24 928C EC13 39C2 5CF7

+> >> Annual key (2009) - C805 1746 397B 0202 2758 2821 58E0 894B 81D2 582E

+> >>

+> > _________________________________________________________________

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