Skip to main content

A pure-python implementation of a truly declarative subset of prolog. Run logic queries on databases or python objects, and use logic clauses to define python classes.

Project description

pyDatalog adds the logic programming paradigm to python’s toolbox, in a pythonic way. You can now run logic queries on databases or python objects, and use logic clauses to define python classes.

Datalog is a truly declarative subset of prolog that is best at

  • managing large sets of related information (e.g. in data integration or the semantic web).
  • simulating intelligent behavior (e.g. in games),
  • performing recursive algorithms (e.g. in network protocol, code and graph analysis)
  • at solving discrete constraint problems.

In particular, pyDatalog can be used as query language:

  • it can perform multi-database queries (from memory datastore, relational databases, and noSQL database with appropriate connectors)
  • it is more expressive than SQL, with a cleaner syntax;
  • it facilitates re-use of SQL code snippet (e.g. for frequent joins or formula);
  • it offloads the database server by performing joins on the application tier.

Datalog excels at accelerated development : Datalog programs are often shorter than their python equivalent, and Datalog statements can be specified in any order, as simply as formula in a spreadsheet.

Project details


Release history Release notifications

History Node

0.17.1

History Node

0.17.0

History Node

0.17.0rc1

History Node

0.16.0

History Node

0.16.0rc1

History Node

0.15.2

History Node

0.15.1

History Node

0.15.0

History Node

0.15.0c1

History Node

0.14.6

History Node

0.14.5

History Node

0.14.4

History Node

0.14.3

History Node

0.14.2

History Node

0.14.1

History Node

0.14.0

History Node

0.14.0c1

History Node

0.13.0

History Node

0.12.0

This version
History Node

0.11.2

History Node

0.11.1

History Node

0.11

History Node

0.10.0

History Node

0.9.0

History Node

0.8.1

History Node

0.8.0

History Node

0.7.0

History Node

0.6.0

History Node

0.5.0

History Node

0.4.0

History Node

0.3.4

History Node

0.3.3

History Node

0.3.2

History Node

0.3.0

History Node

0.2.2

History Node

0.2.1

History Node

0.1.1

History Node

0.1.0

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
pyDatalog-0.11.2.win32.exe (104.7 kB) Copy SHA256 hash SHA256 Windows Installer any Nov 2, 2012
pyDatalog-0.11.2.zip (59.7 kB) Copy SHA256 hash SHA256 Source None Nov 2, 2012

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging CloudAMQP CloudAMQP RabbitMQ AWS AWS Cloud computing Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page