Python

This guide will show how to use hop in a Python project.

We start by creating a hop.toml file.

hop.toml

[compile]
target = "python"
output_path = "frontend.py"

[dev]
server_commands = ["flask run"]

We continue by writing a simple .hop file.

index.hop

<Index {name: String}>
  Hello {name}!
</Index>

Now we compile the hop code to Python.

hop compile

Now the generated Python code is available in the folder ./frontend so we can import it in the backend.

Now, let's define a simple backend using Flask.

app.py

from flask import Flask
import frontend

app = Flask(__name__)

@app.route('/')
def index():
    return frontend.page_index(
        frontend.PageIndexParams(
            name="Tobi"
        )
    )

if __name__ == '__main__':
    app.run(port=8080)

Now hop is integrated into the backend, and we can run hop dev to start the server and get hot-reloading.