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niphlod/PyMySQL

Pure Python MySQL Client

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PyMySQL

.. contents:: Table of Contents
:local:

This package contains a pure-Python MySQL client library. The goal of PyMySQL
is to be a drop-in replacement for MySQLdb and work on CPython, PyPy and IronPython.

NOTE: PyMySQL doesn't support low level APIs _mysql provides like data_seek,
store_result, and use_result. You should use high level APIs defined in PEP 249.
But some APIs like autocommit and ping are supported because PEP 249
doesn't cover
their usecase.

.. _PEP 249: https://www.python.org/dev/peps/pep-0249/

Requirements

  • Python -- one of the following:

    • CPython_ >= 2.6 or >= 3.3
    • PyPy_ >= 4.0
    • IronPython_ 2.7
  • MySQL Server -- one of the following:

    • MySQL_ >= 4.1 (tested with only 5.5~)
    • MariaDB_ >= 5.1

.. _CPython: http://www.python.org/
.. _PyPy: http://pypy.org/
.. _IronPython: http://ironpython.net/
.. _MySQL: http://www.mysql.com/
.. _MariaDB: https://mariadb.org/

Installation

The last stable release is available on PyPI and can be installed with pip::

$ pip install PyMySQL

Documentation

Documentation is available online: http://pymysql.readthedocs.io/

For support, please refer to the StackOverflow <http://stackoverflow.com/questions/tagged/pymysql>_.

Example

The following examples make use of a simple table

.. code:: sql

CREATE TABLE users (
id int(11) NOT NULL AUTO_INCREMENT,
email varchar(255) COLLATE utf8_bin NOT NULL,
password varchar(255) COLLATE utf8_bin NOT NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin
AUTO_INCREMENT=1 ;

.. code:: python

import pymysql.cursors

# Connect to the database
connection = pymysql.connect(host='localhost',
                             user='user',
                             password='passwd',
                             db='db',
                             charset='utf8mb4',
                             cursorclass=pymysql.cursors.DictCursor)

try:
    with connection.cursor() as cursor:
        # Create a new record
        sql = "INSERT INTO `users` (`email`, `password`) VALUES (%s, %s)"
        cursor.execute(sql, ('webmaster@python.org', 'very-secret'))

    # connection is not autocommit by default. So you must commit to save
    # your changes.
    connection.commit()

    with connection.cursor() as cursor:
        # Read a single record
        sql = "SELECT `id`, `password` FROM `users` WHERE `email`=%s"
        cursor.execute(sql, ('webmaster@python.org',))
        result = cursor.fetchone()
        print(result)
finally:
    connection.close()

This example will print:

.. code:: python

{'password': 'very-secret', 'id': 1}

Resources

DB-API 2.0: http://www.python.org/dev/peps/pep-0249

MySQL Reference Manuals: http://dev.mysql.com/doc/

MySQL client/server protocol:
http://dev.mysql.com/doc/internals/en/client-server-protocol.html

PyMySQL mailing list: https://groups.google.com/forum/#!forum/pymysql-users

License

PyMySQL is released under the MIT License. See LICENSE for more information.

Languages

Python98.9%Shell1.1%
MIT License
Created October 1, 2016
Updated October 1, 2016