Re: [Sqlalchemy-tickets] [sqlalchemy] #2161: Py3k support for the C extension

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

#2161: Py3k support for the C extension
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      Reporter:  ged           |      Owner:  pjenvey
          Type:  enhancement   |     Status:  new
      Priority:  medium        |  Milestone:  0.9.xx
     Component:  cextensions   |   Severity:  major - 1-3 hours
    Resolution:                |   Keywords:
Progress State:  needs review  |
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Comment (by zzzeek):

 Reimplementing in Cython is "fine" as a long term goal, however to get our
 existing C extensions to work in py3k should be a far smaller task.  Not
 just in terms of coding.   More importantly, in terms of tests and proven
 stability; the C extensions we have right now are very widely used and
 tested in thousands if not tens of thousands of installations.  If we
 rewrite C exts from scratch using a new system, we throw that maturity out
 the window and start all over again.

 Adding C extensions for small functions here and there isn't really going
 to get us much in terms of performance, and I'm more or less -1 on the
 #2720 improvement as far as attribute access, the ratio of code
 verbosity/complexity to performance gain is too high in that case.   In
 order to break out of what are very diminishing returns right now, we'd
 really need to reconstruct the entire core and ORM using C throughout.
 This would definitely be more of a Cython project as it would be
 unworkable otherwise, but that's a large and distant undertaking.  Right
 now, Pypy continues to be developed with funding, suggesting the irony
 that the longer we do nothing, the more progress is actually made towards
 us getting all the speed improvements via pypy for free.

 As far as this issue, while it's a small task, it's been sitting here for
 literally two years, I'll likely be digging in to learn the API
 differences and try to get this in for 0.9.

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2161#comment:21>
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