Mutable Default Argument Trap

Mutable Default Arguments

Functions, Scope, Mutability & Errors

Local vs Global Scope in Functions

Type Hints for Parameters and Returns

Mutable Default Argument Pitfall

Docstrings and Function Metadata

Nested Function Definitions

Higher-Order Functions in Python

Functions as First-Class Objects

Lambda (Anonymous) Functions

Closures and Captured Variables

The nonlocal Keyword and Enclosing Scope

The global Keyword

LEGB Scope Resolution Rule

Returning Multiple Values via Tuples

Keyword-Only and Positional-Only Parameters

Argument Unpacking in Function Calls

Variadic Keyword Arguments with **kwargs

Variadic Arguments with *args

Mutable Default Argument Pitfall

Default Parameter Values

Positional and Keyword Arguments

Variable-Length Keyword Args

Positional Arguments

Unpacking Arguments in Calls

Positional-Only Parameters

LEGB Scope Resolution

Closures and Captured Variables

Returning Functions from Functions

Pass-by-Object-Reference

Defining Functions with def

Parameters vs Arguments

Functions Returning None

Variable-Length Positional Args

Keyword-Only Arguments

Argument Ordering Rules

Global Scope

Nested Functions

Docstrings for Functions

The return Statement

Keyword Arguments

Default Parameter Values

Local Scope

The global Keyword

The nonlocal Keyword

Functions as First-Class Objects

Lambda Functions

Function Annotations / Type Hints

Recursion Basics

Variable Shadowing

Passing Functions as Arguments

Unpacking with * and **

Enclosing scope and nested functions

The global keyword

Global scope

Local scope

Positional-only parameters

Arbitrary positional args (*args)

Mutable default argument pitfall

Default parameter values

Keyword arguments

Positional arguments

Functions returning None

The return statement

Parameters vs arguments

Defining functions with def

Built-in scope

Returning multiple values

Functions as first-class objects

Passing functions as arguments

Lambda functions

Docstrings for functions

Variable shadowing

Recursion basics

The nonlocal keyword

Pass-by-object-reference

LEGB scope resolution rule

Keyword-only arguments

Arbitrary keyword args (**kwargs)