On Wed, Oct 23, 2002 at 01:46:10PM -0500, Skip Montanaro wrote:

Antonio> Anybody has try psyco and zope?

Oliver> It rocks!

Any gotchas?

Only one that I know of, and it is arguably a service. psyco tries very hard to convert objects to their nearest pythonic cognate. timestamps to DateTimes, floats to floats, integers to ints, etc. In contrast, postgres wire protocol is ascii, and some other adapters leave the result as a string rep. This can be confusing, especially if you are migrating code that worked under other adapters. You may have to expicitly cast your timestamps to string, you may have to worry about null results and what they return. In particular, the value 'infinity'::timestamp is handled very poorly as a result of forcing it into a DateTime. Frankly, given that this actually increases the number of conversions going on and occasionally gets in the way, this is one of the few design decisions involving psyco that I really do not like. I have never tried to handle decimal (fixed point) numbers with psyco. I know that they gave trouble in PoPy at one point. That would be an interesting corner case (and may be correct). Other than that, it is very stable, and seems to be reasonably fast. Jim Penny

-- Skip Montanaro - skip@pobox.com http://www.mojam.com/ http://www.musi-cal.com/

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Doohhh!

...

-----Original Message----- From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of Skip Montanaro Sent: 23. oktober 2002 21:25 To: Jim Penny Cc: Skip Montanaro; Zope Subject: Re: [Zope] Psyco & Zope

Antonio> Anybody has try psyco and zope?

Oliver> It rocks!

Skip> Any gotchas?

Jim> Only one that I know of, and it is arguably a service.

Jim> psyco tries very hard to convert objects to their nearest pythonic Jim> cognate. timestamps to DateTimes, floats to floats, integers to Jim> ints, etc.

Um, before we get any farther off-track, there is "psyco" and "psycopg". Helluva lot different beasts. Sounds like you're talking about psycopg. I was asking (and understood the OP to be asking) about Psyco, Armin Rigo's specializing compiler (see psyco.sf.net I believe).

-- Skip Montanaro - skip@pobox.com http://www.mojam.com/ http://www.musi-cal.com/

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On Wed, Oct 23, 2002 at 10:31:46PM +0200, Tino Wildenhain wrote:

Hi Jim,

psyco != psycopg :-)

Right, apologized in private. Tired. Not enough attention. Too used to newbie questions. Autopilot. Sorry.

Regards Tino

Anyone got a copy of CookieCrumbler I could grab? freezope.org is down... TIA, Sincerely, Richard Wesley Co-President, Electric Fish, Inc. <http://www.electricfish.com/> (v) +1-206-493-1690x210 (f) +1-206-493-1697

At 12:43 PM -0700 10/23/02, Andy McKay wrote:

Try zope.org, or cvs.zope.org

cvs.zope.org did the trick. Thanks! Sincerely, Richard Wesley Co-President, Electric Fish, Inc. <http://www.electricfish.com/> (v) +1-206-493-1690x210 (f) +1-206-493-1697

Sorry, but I haven't used Psyco until now ... I promise you when I try psyco I'll publish a Howto explaining its use. El mar, 29-10-2002 a las 08:26, Andreas Jung escribió:

Can you write a 5-line howto for using Psyco & Zope? -aj

--On Mittwoch, 23. Oktober 2002 20:18 +0200 Oliver Marx <Oliver@tekk.dk> wrote:

...

Antonio Beamud Montero wrote:

...

Hi: Anybody has try psyco and zope? Is notably the performance increment?

Greetings

I shall put it short:

It rocks!

\Oliver

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