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highly flexible, no magic input validation library.

pycerberus is a framework to check user data thoroughly so that you can protect your application from malicious (or just garbled) input data.

  • Remove stupid code which converts input values: After values are validated, you can work with real Python types instead of strings - e.g. 42 instead of '42', convert database IDs to model objects transparently.
  • Implement custom validation rules: Writing custom validators is straightforward, everything is well documented and pycerberus only uses very little Python magic.
  • Focus on your value-adding application code: Save time by implementing every input validation rule only once, but 100% right instead of implementing a dozen different half-baked solutions.
  • Ready for global business: i18n support (based on GNU gettext) is built in, adding custom translations is easy.
  • Tune it for your needs: You can implement custom behavior in your validators, e.g. fetch translations from a database instead of using gettext or define custom translations for built-in validators.
  • Use it wherever you like: pycerberus does not depend on specific contexts (e.g. web development) so you can also use it in every Python application.



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Kelly Hopkins

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8 March 2010

Leaders and contributors

Felix Schwarz Maintainer

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Software prerequisites


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