Example for Google Colab

[tellts]

It's not always possible to launch. And so you may not have a starting point to help me launch Flet. The correct sequence of actions is important here.
We look above to see if any processes are running above in the notepad and stop them (maybe not necessarily, but so that they don’t cause errors).
First we do this:

%%writefile hello2.py
from flask import Flask
 
app = Flask(__name__)
 
@app.route('/')
def hello():
    return 'Hello, world from Saturn!'
 
if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8084)

Then this:

from google.colab import output
output.serve_kernel_port_as_window(8084)

The text https://localhost:8084/ is displayed, and below it is a link to the web page.
Next we do this:
!python hello2.py
And follow the link that was displayed in the previous step.

Next, enter if you have not done so before, or repeat if the code with flet is subsequently underlined with a red zigzag:
!pip install flet