pycerberus is a library 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 dependencies on a specific context like web development.
- Installation and Setup
- Philosophy and Design
- Development Status
- Using Validators
- Available validators
- Writing your own validators
- Using Validation Schemas
- Schema inheritance - build multi-page forms without duplication
- Parse Input with Schemas
- Support for Python 3
pycerberus is licensed under the MIT license. As there are no other dependencies (besides Python itself), you can easily use pycerberus in proprietary as well as GPL applications.