Python has several concepts that look difficult at first, but they become simple once we understand what Python is actually doing. This guide covers: LEGB Scoping Rule Local, Enclosing, Global and Built-in scopes nonlocal First-Class Functions *args **kwargs Packing and Unpacking Mutable Default...
Source: [Dev.to](https://dev.to/deepika_pusala/python-scope-first-class-functions-argskwargs-mutable-default-arguments-1dbc)