Welcome to PuePy!

A pure Python frontend web framework with reactivity, routing, and all the batteries of Python! See those plus/minus buttons right there? Those are running Python code, right in your browser. No transpiling, no build step, no funny business.

							class CounterPage(Page):
    def initial(self):
        return {"current_value": 0}

    def populate(self):
        with t.div(classes="inc-box"):
            t.button("-", on_click=self.on_decr)
            t.span(str(self.state["current_value"]))
            t.button("+", on_click=self.on_incr)

    def on_decr(self, event):
        self.state["current_value"] -= 1

    def on_incr(self, event):
        self.state["current_value"] += 1

Why PuePy? 🐍

PuePy is a lightweight web framework that uses Webassembly via PyScript to put Python right in your browser with all the modern conveniences of a web framework, but none of the headaches of Webpack, NPM, or even JavaScript.

Features 🧑‍💻

  • Reactive data binding with Component-based architecture
  • Single Page App router included
  • No build layer: direct execution like other Python projects
  • Choice of full CPython/ Pyodide or Micropython

Why not PuePy? 🙅

Not all sites need "web frameworks." Does yours? And if it does, will you miss in-browser debuggers, mature JavaScript tooling, and the vast communities around frameworks like React or Vue? You might.

Experiment 🧪

RTFM 📚

Ready to dive in? Check out our tutorial and see how easy it is to build your first project with PuePy.

Documentation

Participate 🖖

You are not the only one looking for a Pure Python development stack. There might be dozens of us!

PuePy on GitHub