pycerberus: input validation done right

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 is used in a ​SMTP server, ​trac macros as well as web applications - there are no dependecies on a specific context like web development. Also a wide range of Python versions is supported: 2.3-2.7 as well as Python 3!

The whole code is licensed under the very liberal ​MIT license so you can use it in your own code without problems.

Download

• tar.gz, egg: ​http://pypi.python.org/pypi/pycerberus
• source: hg repository (​bitbucket mirror)

Documentation and Support

• HTML documentation for pycerberus
• Use the ​mailing list to ask for help or discuss new features
• If you found a bug, please file a bug.

If you like this software, please do me a favor and ​vote on Ohloh and/or click the 'I use it' button on right.