PyPath

A winding trail through Python — ten stops, one destination.

Write real code in your browser. Scroll the path below to walk every unit from foundations to your first projects.

Start at Unit 1 See the path

Scroll to draw the trail

The Summit: a mountain trail with ten unit stops numbered 1 through 10

The path

Ten units as stops on one line. As you scroll, the trail draws itself — and each stop lights up when the line arrives.

Now on the trail

Foundations

Syntax, variables, and I/O — your first real programs.

1–2 hrsBeginner

Open Unit 1

Control Flow

Conditionals, loops, and the logic that steers every program.

2–3 hrsBeginner

Open Unit 2

Functions

Parameters, returns, and scope — write code you can reuse.

2–3 hrsBeginner

Open Unit 3

Data Structures

Lists, dicts, sets, and tuples — organize information with intent.

2–3 hrsBeginner

Open Unit 4

Modules & Packages

Imports, project structure, and code you can share across files.

1–2 hrsBeginner

Open Unit 5

Object-Oriented Python

Classes, objects, and methods — model the world in code.

2–4 hrsIntermediate

Open Unit 6

Files & Errors

File I/O and exceptions — handle the messy real world calmly.

2 hrsIntermediate

Open Unit 7

Testing

Assertions, pytest habits, and confidence that your code holds.

1–2 hrsIntermediate

Open Unit 8

Advanced Topics

Recursion, external libraries, Big-O, and automation.

2–3 hrsIntermediate

Open Unit 9

Capstone Project

Plan, build, document, and present a project of your own.

2–4 hrsAll levels

Open Unit 10

Run Python where you learn it

No install, no setup. Lessons ship with a live editor — try a snippet, see the output, keep moving.

Open the sandbox Full curriculum

stops = ["Foundations", "Control Flow", "Functions"]

for i, name in enumerate(stops, start=1):
    print(f"Stop {i}: {name}")

print("Trailhead marked. Keep scrolling.")

Output

Press Run or ⌘↵ to see output

Built by students, for students

A free path from first program to real projects — made by people still on the trail.

Adam Issac

Co-founder

Saicharan Chowdarapu

Co-founder

Vihaan Krishna

Co-founder

Ready to walk the path?

Ten units. Browser-native Python. Nothing to install — just start at the trailhead.

Start learning See the curriculum