Skip to main content

A document-oriented database written purely in Python.

Project description

Blitz is a document-oriented database toolkit for Python that is backend-agnostic.

It comes with a flat-file database for JSON documents and provides MongoDB-like querying capabilities.

Key Features

  • Document-based, object-oriented interface.

  • Powerful and rich querying language.

  • Deep document indexes on arbitrary fields.

  • Compressed storage of documents.

  • Support for multiple backends (e.g. file-based storage, MongoDB).

  • Support for database transactions (currently only for the file-based backend).


An extensive documentation, including tutorials and installation instructions is available on ReadTheDocs.

Source Code

The source code is available on GitHub.

Isssue Tracker

If you should encounter any problems when using BlitzDB, please feel free to submit an issue on Github.


  • 0.2.12: Added support for proper attribute iteration to Document.

  • 0.2.11: Allow setting the collection parameter through a Document.Meta attribute.

  • 0.2.10: Bugfix-Release: Fix Python 3 compatibility issue.

  • 0.2.9: Bugfix-Release: Fix serialization problem with file backend.

  • 0.2.8: Added get, has_key and clear methods to Document class

  • 0.2.7: Fixed problem with __unicode__ function in Python 3.

  • 0.2.6: Bugfix-Release: Fixed an issue with the $exists operator for the file backend.

  • 0.2.5: Bugfix-Release

  • 0.2.4: Added support for projections and update operations to the MongoDB backend.

  • 0.2.3: Bugfix-Release: Fixed bug in transaction data caching in MongoDB backend.

  • 0.2.2: Fix for slice operators in MongoDB backend.

  • 0.2.1: Better tests.

  • 0.2.0: Support for including additional information in DB references. Support for accessing document attributes as dictionary items.

    Added $regex parameter that allows to use regular expressions in queries.

  • 0.1.5: MongoDB backend now supports database transactions. Database operations are now read-isolated by default, i.e.

    uncommitted operations will not affect database queries before they are committed.

  • 0.1.4: Improved indexing of objects for the file backend, added support for automatic serialization/deserialization

    of object attributes when adding keys to or querying an index.

  • 0.1.3: Sorting of query sets is now supported (still experimental)

  • 0.1.2: Small bugfixes, BlitzDB version number now contained in DB config dict

  • 0.1.1: BlitzDB is now Python3 compatible (thanks to David Koblas)

Project details

Download files

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

Source Distribution

blitzdb-0.2.12.tar.gz (31.6 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page