Py-pycerberus

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 is used in a SMTP server, trac macros as well as web applications - there are no dependecies on a specific context like web development.