Re: [Sqlalchemy-tickets] [sqlalchemy] #2720: new C extensions for attribute accessing

[sqlalchemy <mi...@zz...>]

#2720: new C extensions for attribute accessing
-----------------------------------+---------------------------------------
      Reporter:  zzzeek            |      Owner:  zzzeek
          Type:  enhancement       |     Status:  new
      Priority:  medium            |  Milestone:  0.9.0
     Component:  cextensions       |   Severity:  very major - up to 2 days
    Resolution:                    |   Keywords:
Progress State:  not decided upon  |
-----------------------------------+---------------------------------------

Comment (by claudiofreire):

 Well, it certainly is tricky to get optimal performance, but I've never
 failed achieving C speeds with Pyrex. I know Cython tries to do type
 inference to speed up things, in Pyrex you have to annotate types. I've
 found explicit annotation is more predictable than relying on type
 inference, that's why I prefer Pyrex. I just need careful cdefs and
 everything flies.

 When there is a need for native C code, you can always include C code from
 Pyrex. I've in fact done that to include C++ code, when C++'s template
 power was required. The benefit over pure C extensions is that you avoid
 all that CPython boilerplate.

 So it's a matter of how much needs to be pure C and how much can Pyrex
 replace, I don't think it will make a difference in speed (ie: it will be
 just as fast).

-- 
Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2720#comment:19>
sqlalchemy <http://www.sqlalchemy.org/>
The Database Toolkit for Python