mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-21 16:36:34 +03:00
PostgreSQL database adapter for the Python programming language
7254587838
This is the same operation performed by postgres when extracting the
number of seconds of an interval:
=# select extract(epoch from '1 year'::interval) / 60 / 60 / 24;
?column?
----------
365.25
This way `extract(epoch from interval)` will match the resulting
`timedelta.total_seconds()`.
Close #570
|
||
|---|---|---|
| doc | ||
| examples | ||
| lib | ||
| psycopg | ||
| sandbox | ||
| scripts | ||
| tests | ||
| .appveyor.yml | ||
| .gitignore | ||
| .travis.yml | ||
| AUTHORS | ||
| INSTALL | ||
| LICENSE | ||
| Makefile | ||
| MANIFEST.in | ||
| NEWS | ||
| psycopg2.cproj | ||
| psycopg2.sln | ||
| README.rst | ||
| setup.cfg | ||
| setup.py | ||
| tox.ini | ||
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
-------------
Documentation is included in the ``doc`` directory and is `available online`__.
.. __: http://initd.org/psycopg/docs/
Installation
------------
If your ``pip`` version supports wheel_ packages it should be possible to
install a binary version of Psycopg including all the dependencies from PyPI_.
Just run::
$ pip install -U pip # make sure your pip is up-to-date
$ pip install psycopg2
If you want to build Psycopg from source you will need some prerequisites (a C
compiler, development packages): please check the install_ and the faq_
documents in the ``doc`` dir for the details.
.. _wheel: http://pythonwheels.com/
.. _PyPI: https://pypi.python.org/pypi/psycopg2
.. _install: http://initd.org/psycopg/docs/install.html#install-from-source
.. _faq: http://initd.org/psycopg/docs/faq.html#faq-compile
For any other resource (source code repository, bug tracker, mailing list)
please check the `project homepage`__.
.. __: http://initd.org/psycopg/
:Linux/OSX: |travis|
:Windows: |appveyor|
.. |travis| image:: https://travis-ci.org/psycopg/psycopg2.svg?branch=master
:target: https://travis-ci.org/psycopg/psycopg2
:alt: Linux and OSX build status
.. |appveyor| image:: https://ci.appveyor.com/api/projects/status/github/psycopg/psycopg2?branch=master&svg=true
:target: https://ci.appveyor.com/project/psycopg/psycopg2/branch/master
:alt: Windows build status