00 – Setup & First Steps

Lernziele dieses Kapitels

You understand why Python is THE programming language for beginners
You can install Python and VS Code on your computer
You write your first Python program and run it
You set up your PyBuddy project folder

Why Python?

Welcome to the world of Python! Imagine being able to tell a computer what to do in almost normal language — without complicated brackets or semicolons. That's exactly what Python is.

While HTML and CSS describe (what a website looks like), and JavaScript reacts (to clicks and inputs), Python can do everything: build websites, analyze data, train AI, program games, control robots.

Instagram, YouTube, Spotify, Netflix — they all use Python behind the scenes. And you're standing at the beginning of this journey right now.

Install Python

Python is completely free. We use Python 3.11 or newer — everything else is history.

Go to python.org and click Downloads
Download Python 3.x (not Python 2!)
IMPORTANT (Windows): Enable Add Python to PATH during installation
Click Install Now and wait

Warning

If you forget to "Add Python to PATH", Python won't work in the terminal. Make sure to check this box!

VS Code — Your New Tool

VS Code is like a Swiss Army knife for programmers. You might already know it from the JavaScript Quest. For Python, we only need two extensions:

Open VS Code and press Ctrl+Shift+X
Search for "Python" by Microsoft → Install
Optional: "Pylance" for better auto-completion

Pro Tip

The Python extension shows you errors directly in the editor and suggests code completions — you'll learn much faster!

Your First Program: Hello World

Every programming language starts with Hello World — the simplest program ever. In Python, it's ... surprisingly simple.

Compare for yourself:

# Python (1 line!)
print("Hello World!")

# JavaScript for comparison (3 lines)
# console.log("Hello World!");

# Java for comparison (5 lines!)
# public class Main {
#     public static void main(String[] args) {
#         System.out.println("Hello World!");
#     }
# }

Ausgabe

Hello World!

Du kennst bereits JavaScript aus dem JS-Quest. Hier ist der direkte Vergleich:

Python

print("Hello World!")

JavaScript

console.log("Hello World!");

Merke: In Python, you don't need semicolons, curly braces, or 'function' — just print() and you're good to go!

PyBuddy — Your Ongoing Project

Throughout this tutorial, you'll build PyBuddy step by step — your own digital assistant. In the end, PyBuddy will be able to:

Greet you by name
Perform calculations
Save notes
Fetch current weather
Communicate with AI

For today, we'll just set up the folder. Create a folder called pybuddy on your computer, and inside it a file called main.py.

# File: pybuddy/main.py
# This is the starting file of your project

print(" Loading PyBuddy...")
print("Ready for your commands!")

Ausgabe

Loading PyBuddy... Ready for your commands!

Write a program that outputs three lines: Your name, your age, and your favorite hobby. Save it as greeting.py.

Open VS Code
Create greeting.py
Write 3 print() commands
Run the program with python greeting.py

Hinweis: print("My name is Max") print("I am 16 years old") print("My hobby is gaming")

print("My name is Max")
print("I am 16 years old")
print("My hobby is gaming")

Use multiple print() commands to create a small ASCII image — e.g., a cat, a heart, or your favorite gaming character.

Create ascii.py
Use at least 5 print() commands
Draw an ASCII image
Save and test

Hinweis: print(" /\_/\ ") print(" ( o.o ) ") print(" > ^ < ")

print("  /\_/\  ")
print(" ( o.o ) ")
print("  > ^ <  ")

Create the PyBuddy project folder with a main.py that outputs a greeting and your name. This is the start of our big project!

Create pybuddy folder
Create main.py file
Output greeting + name
Test the program

Hinweis: # pybuddy/main.py print(" Welcome to PyBuddy!") print("Created by: [Your Name]")

# pybuddy/main.py
print(" Welcome to PyBuddy!")
print("Created by: [Your Name]")

Learning Break

Did you know? Minecraft was originally written in Java — but the modding community loves Python because you can build your own plugins in just a few lines. Soon YOU'll be able to do that too!

Zusammenfassung

Python is simple, versatile, and the perfect first programming language
Installation: python.org → Python 3.x → don't forget 'Add to PATH'
VS Code + Python Extension = your development environment
<code>print()</code> outputs text — no semicolon, no brackets needed
PyBuddy is your ongoing project for this tutorial

Setup & First Steps