For this workshop you'll require the qiskit and qiskit_aer Python modules.
python3 -m venv my-qiskit-venv
source my-qiskit-venv/bin/activate # Windows: my-qiskit-venv\Scripts\activate
Upgrade pip (recommended):
pip install --upgrade pip
Install Qiskit core plus Qiskit-Aer:
pip install qiskit qiskit_aer