Pros/cons of various PostGres modules

[Jim Hefferon]

Hello,

I'm starting on a project that will have Python interfacing with PostGres.
I see that there are now four modules listed on the Python web site.
I'd be very interested in any suggestions as to which ones are best.

I've used PyPgSQL with good luck in the recent past.  But there are two
that are newer that are thread safe.  Will I notice on a moderately-loaded
application?  Are they debugged?  Is one faster than the others?  Any other
experiences?  They all look good to me!

Thanks,
Jim Hefferon