Re: WIP: plpython3

On Friday 24 July 2009 01:23:40 James Pye wrote:
> Here are the features that I plan/hope to implement before submitting
> any patch:
>
> * Native Typing [Python types that represent Postgres types]
> * Reworked function structure (Python modules, not function fragments)
> * Improved SQL interfaces (prepared statement objects[2])
> * Better SRF support(?) (uses iterators, will support composites,
> vpc & mat)
> * Direct function calls (to other Postgres functions)
> * IST support (with xact(): ...)
> * Full tracebacks for Python exceptions(CONTEXT support)
> * Cached bytecode (presuming a "procache" attributes patch would be
> acceptable[3])

While various of these ideas may be good, I think you are setting yourself up
for a rejection. There is a lot of plpython code already out there, and many
years have gone into debugging plpython to work well, so rewriting everything
and setting everyone up for a flag day, or requiring the parallel maintenance
of old and new versions of plpython is not going to work. Plus, tying all of
this up with Python 3 will make totally sure that no one expect a minority
will be able to use it.

As far as I can tell, most of the features you list above could very well be
implemented in the current language handler, using separate, isolated patches.
I don't see why everything needs to be written from scratch.