Installing Python

In previous courses, we've written our Python code in the browser, but now we're going to install Python on our local machine, and use it just like you will as a professional developer.

Assignment

There are two versions of this lesson, one for WSL/Linux users, and one for macOS users.

for Windows (WSL 2) / Linux Users

If you're on Linux (or Windows WSL 2), you may already have Python installed. You can verify this by running:

python3 --version

If that worked, you can skip ahead!

If it didn't, we'll use the default package manager, apt, to download python.

Run this command to install python3:

sudo apt update
sudo apt install -y python3

Make sure to read the installation logs in case there's some step you're missing!

Restart your shell to make sure the changes have taken effect.
Verify the installation:

python3 --version

You should get back a valid Python 3.x version.

Run and submit the CLI tests.

for macOS

We'll use the Homebrew package manager to install Python.

If you don't already have Homebrew, install it by running the following command:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

Open your ~/.zshrc / ~/.bashrc file (or whatever your shell config file is) and add this line to the bottom:

export PATH="/opt/homebrew/bin:$PATH"

Restart your shell to make sure the changes have taken effect.
With brew now in your PATH, install Python:

brew install python3

Verify the installation:

python3 --version

You should get back a valid Python 3.x version.

Run and submit the CLI tests.