py_metaprogramming
Inspired by David Beazley'S tutorial Python 3 Metaprogramming presented at PyCon'13, March 14, 2013. Santa Clara, California.
Considerations
(Class) Decorator vs Metaclass:
- How many functionalities will the Metaclass have?
- Propagation due to inheritance
- decorator to fulfill specialized needs
Use Case
Debug
Problem
While debugging, print or logging function everywhere.
Solution
Use decorator to debug func and class decorator to debug all instance method. Example Link
Signature
Problem
Boilerplate code to assign attribute while init a class.
Solution
Use Signature from the standard library inspect to build signature for function.
Example Link