Python Foundations

Instructions for a Robot

Discover why being precise is the core skill of programming

Patterns in Everyday Life

You already think algorithmically, programming just makes it explicit

What Even IS a Program?

Before typing a single character, understand what you are actually building

How to Read a Problem

Before writing a single line of code, learn to dissect any problem statement

Pseudocode: Think Before You Type

Write your solution in plain English before touching Python

Numbers & Math

Every program uses numbers, learn how Python thinks about arithmetic

Variables, Storing Information

Learn to store, name, and reuse values in your programs

Types & Type Conversion

Why "5" + 3 crashes Python, and how to fix it

Strings, Working with Text

Master text manipulation, the most common thing programs do

F-Strings & String Formatting

The modern way to put values inside text, used in every real Python program

Comments & Clean Code

Write code your future self will actually understand

🏆 Project: Tip Calculator

Use everything you've learned to build your first real program

If / Else, Making Decisions

Teach your program to choose different paths based on conditions

Boolean Logic

Combine conditions with and, or, not, and master Python truthiness

Logical Operators

Combine conditions with and, or, not, the glue of real decisions

The Error Detective

Errors are clues, not failures, learn to read them like a pro

For Loops, Doing Things Repeatedly

Stop copying and pasting, let loops do the repetitive work for you

While Loops, Loop Until Done

Use while loops when you don't know how many times to repeat

Loop Control, break, continue, pass

Take back control of your loops instead of letting them run on autopilot

Trace the Code

Read code like a computer, the skill most courses never teach

Functions, kwargs, *args & Defaults

Keyword arguments, default values, and accepting any number of inputs

Default Parameters & Scope

Write more flexible functions and understand where variables live

Lambda Functions

One-line anonymous functions, perfect for sort keys and quick transforms

Tuples, Immutable Sequences

Like lists, but fixed, coordinates, RGB values, function return values

List Comprehensions

The Pythonic one-liner that replaces a for loop, elegant and fast

String Methods

len, upper, lower, split, join, replace, the toolkit for text

Dictionaries, Key-Value Pairs

Store data that needs to be looked up by name, not position

How to Crack Any Coding Interview

A repeatable framework for tackling interview problems under pressure

The 6-Step Problem-Solving Framework

Understand → Examples → Brute Force → Optimize → Code → Test

String Problems

Reversal, anagrams, character counting, patterns you'll see everywhere

List Problems

Accumulator, two-pointer, and sliding window patterns

Dictionary Problems

Counting, grouping, and lookup, the three superpowers of dicts

Error Handling, try / except

Write programs that survive mistakes instead of crashing

Modules & Imports

Use Python's built-in toolkit, math, random, datetime and more

JSON: The Language of APIs

json.loads(), json.dumps(), and working with nested data

Regular Expressions: Pattern Matching

re.search(), re.findall(), find anything in text

Capstone: Log File Analyzer

Build a real tool that parses server logs and produces a report

Testing with assert

Write tests that catch bugs before your users do