Python Flask installation

There is nothing special. You install flask as you’d install any other Python package. Using some kind of virtual envrionment is recommended here too.

Linux / macOS

mkdir project
cd project
virtualenv .venv -p python3
source .venv/bin/activate

pip install Flask

Windows

mkdir project
cd project
virtualenv .venv -p python3
.venv\Scripts\activate

pip install Flask

Install using uv

uv is avery fast package and project manager. After installing uv you can do the following.

$ uv init flask-demo
$ cd flask-demo
$ uv add flask

Rename the main.py file to app.py to make it easier to follow along.

$ uv run flask run