pyDAL

pyDAL is a pure Python Database Abstraction Layer.

It dynamically generates the SQL/noSQL in realtime using the specified dialect for the database backend, so that you do not have to write SQL code or learn different SQL dialects (the term SQL is used generically), and your code will be portable among different types of databases.

pyDAL comes from the original web2py's DAL, with the aim of being compatible with any Python program. pyDAL doesn't require web2py and can be used in any Python context.

Installation

You can install pyDAL using pip:

pip install pyDAL

Usage and Documentation

Here is a quick example:

>>> from pydal import DAL, Field
>>> db = DAL('sqlite://storage.db')
>>> db.define_table('thing', Field('name'))
>>> db.thing.insert(name='Chair')
>>> query = db.thing.name.startswith('C')
>>> rows = db(query).select()
>>> print rows[0].name
Chair
>>> db.commit()

The complete documentation is available on http://www.web2py.com/books/default/chapter/29/06/the-database-abstraction-layer

What's in the box?

A little taste of pyDAL features:

Transactions
Aggregates
Inner Joins
Outer Joins
Nested Selects

Which databases are supported?

pyDAL supports the following databases:

SQLite
MySQL
PostgreSQL
MSSQL
FireBird
Oracle
DB2
Ingres
Sybase
Informix
Teradata
Cubrid
SAPDB
IMAP
MongoDB

License