25 lines
1.2 KiB
Plaintext
25 lines
1.2 KiB
Plaintext
psycopg is a PostgreSQL database adapter for the Python programming
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language (just like pygresql and popy.) It was written from scratch
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with the aim of being very small and fast, and stable as a rock.
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The main advantages of psycopg are that it supports (well... *will*
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support) the full Python DBAPI-2.0 and being thread safe at level
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2.
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psycopg is different from the other database adapter because it was
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designed for heavily multi-threaded applications that create and
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destroy lots of cursors and make a conspicuous number of concurrent
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INSERTs or UPDATEs. Every open Python connection keeps a pool of
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real (UNIX or TCP/IP) connections to the database. Every time a new
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cursor is created, a new connection does not need to be opened;
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instead one of the unused connections from the pool is used. That
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makes psycopg very fast in typical client-server applications that
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create a servicing thread every time a client request arrives.
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psycopg is still in development but that does not mean that it is
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unstable. It just does not support the Python DBAPI-2.0 completely
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and is missing some of the more esoteric features we want it to
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have.
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Note that you need to install the -zope subpackage if you want to
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use psycopg as a PostgreSQL database adapter for Zope.
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