Using the print() function

Adding notes to your code

Creating and using variables

Specify a variable type

Working with text

Arithmetic and comparison operators

Getting input from users

Making decisions in code

Iterating over sequences

Loop while a condition is true

Ordered, changeable collections

Ordered, unchangeable collections

Key-value pairs

Unordered, unique collections

Creating reusable code blocks

Small anonymous functions

Modifying function behavior

Object-oriented programming basics

Inheriting from parent classes

Handling errors gracefully

Parse and create JSON data

Pattern matching in text

Mean, median, standard deviation

Processing and analyzing data

Inspect, summarize, and question a dataset before decisions

Fix missing values, standardize text, and prepare clean data

Build a simple ML classifier from scratch

Track revenue, profit, conversion, and growth clearly

Group customers by behavior to improve decisions

Use trends and averages to estimate future results

Bubble, selection, and quick sort

Linear and binary search

Functions that call themselves

Build a calculator with math functions

Task management system with OOP

Generate and check password strength