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doc Add psycopg2.extensions.quote_ident.
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lib Fixed race condition on import in errorcodes.lookup
psycopg Fix stale Dprintfs in pqpath.c referring to 'status'
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tests Fixed race condition on import in errorcodes.lookup
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AUTHORS Preparing release 2.3.0-beta1
INSTALL Dropped content from the INSTALL file
LICENSE Changes license to LGPL3 + OpenSSL exception on all source files Added missing files needed to build the docs
Makefile Docs build process and docs cleaned up
NEWS Fixed race condition on import in errorcodes.lookup
README.rst Direct link to the install docs in the readme
psycopg2.cproj Dropped outdated HACKING file
setup.cfg Dropped HAVE_PQFREEMEM flag Dropped PG_VERSION_HEX constant
tox.ini Dropped Zope support


psycopg2 - Python-PostgreSQL Database Adapter

Psycopg is the most popular PostgreSQL database adapter for the Python programming language. Its main features are the complete implementation of the Python DB API 2.0 specification and the thread safety (several threads can share the same connection). It was designed for heavily multi-threaded applications that create and destroy lots of cursors and make a large number of concurrent "INSERT"s or "UPDATE"s.

Psycopg 2 is mostly implemented in C as a libpq wrapper, resulting in being both efficient and secure. It features client-side and server-side cursors, asynchronous communication and notifications, "COPY TO/COPY FROM" support. Many Python types are supported out-of-the-box and adapted to matching PostgreSQL data types; adaptation can be extended and customized thanks to a flexible objects adaptation system.

Psycopg 2 is both Unicode and Python 3 friendly.


Documentation is included in the 'doc' directory and is available online.


If all the dependencies are met (i.e. you have the Python and libpq development packages installed in your system) the standard:

python build
sudo python install

should work no problem. In case you have any problem check the 'install' and the 'faq' documents in the docs or online.

For any other resource (source code repository, bug tracker, mailing list) please check the project homepage.

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