Lesson 01

Setup and your first script

This lesson gets you coding in minutes, the same way we bootstrap projects at SigLabs.

Install Python

• Download the latest Python 3 from python.org and run the installer.
• On Windows, check “Add python.exe to PATH”.
• Verify: open a terminal and run: python --version.

Pick an editor

We recommend VS Code with the “Python” extension enabled for linting, debugging, and testing.

Run your first script

Create a file named hello.py with:

name = input("What's your name? ")
print(f"Hello, {name}!")

Run it from a terminal: python hello.py.

Use the REPL

Type python in your terminal to enter the interactive prompt. Try:

>>> 2 + 2
4
>>> print("quick checks are easy here")
quick checks are easy here

Next steps

Move on to data types and control flow in Lesson 02.