44.1 Install PyTorch Simply

By Ravindra Bagale Last updated: 24 October 2026

Why. Theory is done enough — time to install the library we will use for deep learning on this site: PyTorch (not Keras-first).

What. PyTorch is a popular Python library for tensors and neural nets. CPU install is enough for these beginner chapters. GPU is optional speed.

How.

Install in a venv (recommended)

Create/activate a virtual environment.
Install from the official command on pytorch.org for your OS (CPU build is fine).
Or try: pip install torch inside the venv.
Verify with a one-line import.

import torch
print(torch.__version__)
print("cuda available:", torch.cuda.is_available())

What you should see. A version string. cuda available: False is OK on many laptops — chapters still run on CPU.

Classroom note

If install fails behind a proxy, ask your trainer for the offline wheel. Do not paste random .exe files from the web.