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Daniele Varrazzo 2012-10-07 02:07:47 +01:00
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@ -4,12 +4,13 @@ Psycopg -- PostgreSQL database adapter for Python
.. sectionauthor:: Daniele Varrazzo <daniele.varrazzo@gmail.com> .. sectionauthor:: Daniele Varrazzo <daniele.varrazzo@gmail.com>
Psycopg_ is a PostgreSQL_ database adapter for the Python_ programming Psycopg_ is the most popular PostgreSQL_ database adapter for the Python_
language. Its main features are that it supports the full Python |DBAPI|_ programming language. Its main features are the complete implementation of
and it is thread safe (threads can share the connections). It was designed for the Python |DBAPI|_ specification and the thread safety (several threads can
heavily multi-threaded applications that create and destroy lots of cursors and share the same connection). It was designed for heavily multi-threaded
make a large number of concurrent :sql:`INSERT`\ s or :sql:`UPDATE`\ s. applications that create and destroy lots of cursors and make a large number
The Psycopg distribution includes ZPsycopgDA, a Zope_ Database Adapter. of concurrent :sql:`INSERT`\s or :sql:`UPDATE`\s. The Psycopg distribution
includes ZPsycopgDA, a Zope_ Database Adapter.
Psycopg 2 is mostly implemented in C as a libpq_ wrapper, resulting in being Psycopg 2 is mostly implemented in C as a libpq_ wrapper, resulting in being
both efficient and secure. It features client-side and :ref:`server-side both efficient and secure. It features client-side and :ref:`server-side
@ -18,12 +19,13 @@ both efficient and secure. It features client-side and :ref:`server-side
support, and a flexible :ref:`objects adaptation system support, and a flexible :ref:`objects adaptation system
<python-types-adaptation>`. Many basic Python types are supported <python-types-adaptation>`. Many basic Python types are supported
out-of-the-box and mapped to matching PostgreSQL data types, such as strings out-of-the-box and mapped to matching PostgreSQL data types, such as strings
(both bytes and Unicode), numbers (ints, longs, floats, decimals), booleans and (both byte strings and Unicode), numbers (ints, longs, floats, decimals),
datetime objects (both built-in and `mx.DateTime`_), several types of booleans and date/time objects (both built-in and `mx.DateTime`_), several
:ref:`binary objects <adapt-binary>`. Also available are mappings between lists types of :ref:`binary objects <adapt-binary>`. Also available are mappings
and PostgreSQL arrays of any supported type, between :ref:`dictionaries and between lists and PostgreSQL arrays of any supported type, between
PostgreSQL hstores <adapt-hstore>`, and between :ref:`tuples/namedtuples and :ref:`dictionaries and PostgreSQL hstore <adapt-hstore>`, between
PostgreSQL composite types <adapt-composite>`. :ref:`tuples/namedtuples and PostgreSQL composite types <adapt-composite>`,
and between Python objects and :ref:`JSON <adapt-json>`.
Psycopg 2 is both Unicode and Python 3 friendly. Psycopg 2 is both Unicode and Python 3 friendly.