SQLObject is a free and open-source (LGPL) Python object-relational mapper. Your database tables are described as classes, and rows are instances of those classes. SQLObject is meant to be easy to use and quick to get started with.
SQLObject supports a number of backends: MySQL/MariaDB (with a number of
DB API drivers: MySQLdb, mysqlclient, mysql-connector,
PyMySQL, mariadb), PostgreSQL (psycopg, psycopg2, PyGreSQL,
partially pg8000), SQLite (builtin sqlite3);
connections to other backends - Firebird, Sybase, MSSQL and MaxDB (also
known as SAPDB) - are less debugged).
Python 2.7 or 3.4+ is required.
Site: http://sqlobject.org
Download: https://pypi.org/project/SQLObject/
News and changes: http://sqlobject.org/News.html
StackOverflow: https://stackoverflow.com/questions/tagged/sqlobject
Mailing lists: https://sourceforge.net/p/sqlobject/mailman/
Development: http://sqlobject.org/devel/
Developer Guide: http://sqlobject.org/DeveloperGuide.html
Install:
$ pip install sqlobject
Create a simple class that wraps a table:
>>> from sqlobject import *
>>>
>>> sqlhub.processConnection = connectionForURI('sqlite:/:memory:')
>>>
>>> class Person(SQLObject):
... fname = StringCol()
... mi = StringCol(length=1, default=None)
... lname = StringCol()
...
>>> Person.createTable()
Use the object:
>>> p = Person(fname="John", lname="Doe") >>> p <Person 1 fname='John' mi=None lname='Doe'> >>> p.fname 'John' >>> p.mi = 'Q' >>> p2 = Person.get(1) >>> p2 <Person 1 fname='John' mi='Q' lname='Doe'> >>> p is p2 True
Queries:
>>> p3 = Person.selectBy(lname="Doe")[0] >>> p3 <Person 1 fname='John' mi='Q' lname='Doe'> >>> pc = Person.select(Person.q.lname=="Doe").count() >>> pc 1