PYTHON EXPERT
Dynamic properties and descriptors
Python lets you customize attribute access using metaprogramming. Override `__getattr__` to intercept missing attributes, `__setattr__` for writes, and use property descriptors to manage class variables.
How it reads
__getattr__(self, name) runs only when the attribute does not exist
It returns a computed value dynamically
Cloud tip: Use __getattr__ for fallback lookup; use __getattribute__ to intercept every attribute access (but watch out for infinite recursion).