bpgsql 2.0 alpha 1

For many years I've been using bpgsql, my own pure-Python PostgreSQL client, and I've finally sat down and got things somewhat polished up enough to put together as a real package.

One thing that motivated the work was the desire to use in with Django - after seeing psycopg2 do some funny things when used under mod_wsgi. There's no doubt it's slower, but it's much easier to hack on, and might be of interest to people running Djano under other Pythons such as PyPy or Jython. Getting it to pass all the Django unittests really ironed out a lot of bugs, so I think it's in fairly decent shape now.