PWF (PHP Web Framework) is an extremely lightweight but powerful PHP Web framework that uses the MVC pattern and object oriented programming. It makes it easier to write applications with clean code and clear architecture, and has a small learning curve. It doesn’t need installation and works in most environments. The controller used for each request is selected through simple but effective rules, and the method by the type of the request. It provides database abstraction with data-object mapping.
validator.py is a tool for ensuring that data conforms to certain sets of rules, called validations. A validation is essentially a schema for a dictionary, containing a list of rules for each key/value pair in the dictionary you want to validate. This is intended to fill a similar use case to form validations in WTForms or Rails, but for general sources of data, not just Web forms.