another Python-PostgreSQL adapter

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+psycopg is a PostgreSQL database adapter for the Python programming language
+(just like pygresql and popy.) It was written from scratch with the aim of
+being very small and fast, and stable as a rock. The main advantages of
+psycopg are that it supports (well... *will* support) the full Python
+DBAPI-2.0 and being thread safe at level 2.
+
+psycopg is different from the other database adapter because it was designed
+for heavily multi-threaded applications that create and destroy lots of
+cursors and make a conspicuous number of concurrent INSERTs or UPDATEs.
+Every open Python connection keeps a pool of real (UNIX or TCP/IP) connections
+to the database. Every time a new cursor is created, a new connection does not
+need to be opened; instead one of the unused connections from the pool is
+used. That makes psycopg very fast in typical client-server applications that
+create a servicing thread every time a client request arrives.