01-04: Environment Setup¶

Install Python 3¶

Step 1: Go to official Python website: https://www.python.org/downloads/

Step 2: Download the latest version of Python

install-python

👉 Download: - Python 3.x.x (recommended)

Or,

Step 3: Install Python

IMPORTANT: ✔ Check "Add Python to PATH" before clicking Install

Step 1: Search available Python versions

winget search Python

Step 2: Install using exact version from search result

winget install Python.Python.<version found in Step 1>

python --version

If not working:

py --version

General command:

pip install <library_name>

Examples:

pip install numpy        # numerical computing
pip install pandas       # data analysis and handling
pip install matplotlib   # data visualization

Optional (for Reinforcement Learning):

pip install gymnasium    # RL environments (e.g., CartPole)

Step 1: Download: https://code.visualstudio.com/

Step 2: Install

During installation:

✔ Add to PATH

✔ Add "Open with Code"

Open VS Code → Extensions → Search: Python

Install: Python (by Microsoft)

NOTE: Python extension does NOT install Python