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https://github.com/dvrhax/uPyMySQL
Pure uPython MySQL Client
https://github.com/dvrhax/uPyMySQL
Last synced: 1 day ago
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Pure uPython MySQL Client
- Host: GitHub
- URL: https://github.com/dvrhax/uPyMySQL
- Owner: dvrhax
- License: mit
- Created: 2019-02-27T02:46:34.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2020-05-07T12:41:15.000Z (over 4 years ago)
- Last Synced: 2024-04-22T13:31:31.005Z (7 months ago)
- Language: Python
- Homepage:
- Size: 472 KB
- Stars: 22
- Watchers: 4
- Forks: 6
- Open Issues: 3
-
Metadata Files:
- Readme: README.rst
- Changelog: CHANGELOG
- License: LICENSE
Awesome Lists containing this project
- awesome-micropython-lib - uPyMySQL - Pure MicroPython MySQL Client (Database)
- awesome-micropython - uPyMySQL - Pure MicroPython MySQL Client. (Libraries / Storage)
README
.. image:: https://img.shields.io/badge/license-MIT-blue.svg
:target: https://github.com/dvrhax/uPyMySQL/blob/master/LICENSE
uPyMySQL
=======
.. contents:: Table of Contents
:local:
This package contains a pretty rough hack of the pure-Python MySQL client library. The goal of uPyMySQL
is to be a drop-in replacement for MySQLdb and work on uPython.
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. Ditto for uPyMySQL
.. _`PEP 249`: https://www.python.org/dev/peps/pep-0249/
Requirements
-------------
* uPython_
* MySQL Server -- one of the following:
- MySQL_ >= 4.1 (tested with only 5.5~)
- MariaDB_ >= 5.1
.. _uPython: https://micropython.org/
.. _MySQL: http://www.mysql.com/
.. _MariaDB: https://mariadb.org/
Installation
------------
Clone from Git and copy the upymysql folder onto your microcontroller
Most likely directly copying onto your microcontroller will fail.
You will likely need to re-compile micropython including upymysql into the firmware
Documentation
-------------
You're pretty much looking at it
Example
-------
No Guarantees that these work yet:
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 upymysql
import upymysql.cursors
# Connect to the database
connection = upymysql.connect(host='localhost',
user='user',
password='passwd',
db='db',
charset='utf8mb4',
cursorclass=upymysql.cursors.DictCursor)
try:
with connection.cursor() as cursor:
# Create a new record
sql = "INSERT INTO `users` (`email`, `password`) VALUES (%s, %s)"
cursor.execute(sql, ('[email protected]', '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, ('[email protected]',))
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
PyMySQL Github site: https://github.com/PyMySQL/PyMySQL
uPython: https://micropython.org/
License
-------
PyMySQL is released under the MIT License. See LICENSE for more information.