Open browser automatically when Python code is executed

Question

I am implementing a GUI in Python/Flask. The way flask is designed, the local host along with the port number has to be "manually" opened.

Is there a way to automate it so that upon running the code, browser(local host) is automatically opened?

I tried using webbrowser package but it opens the webpage after the session is killed.

I also looked at the following posts but they are going over my head.

Shell script opening flask powered webpage opens two windows

python webbrowser.open(url)

Problem occurs when html pages are rendered based on user inputs.

Thanks in advance.

import webbrowser

from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello World!"

if __name__ == "__main__":
    webbrowser.open_new('http://127.0.0.1:2000/')
    app.run(port=2000)

livemyaerodream · Accepted Answer · 2022-10-12 07:35:25Z

38

Use timer to start new thread to open web browser.

import webbrowser
from threading import Timer

from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello World!"

def open_browser():
      webbrowser.open_new("http://127.0.0.1:5000")

if __name__ == "__main__":
      Timer(1, open_browser).start()
      app.run(port=2000)

edited Oct 12, 2022 at 7:35

livemyaerodream

9307 silver badges20 bronze badges

answered Jan 17, 2019 at 11:58

Sunil Goyal

5884 silver badges9 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Yaakov Bressler · Accepted Answer · 2020-08-02 13:52:33Z

2

I'd suggest the following improvement to allow for loading of the browser when in debug mode:
Inspired by this answer, will only load the browser on the first run...

def main():
    
    # The reloader has not yet run - open the browser
    if not os.environ.get("WERKZEUG_RUN_MAIN"):
        webbrowser.open_new('http://127.0.0.1:2000/')

    # Otherwise, continue as normal
    app.run(host="127.0.0.1", port=2000)

if __name__ == '__main__':
    main()

https://stackoverflow.com/a/9476701/10521959

answered Aug 2, 2020 at 13:52

Yaakov Bressler

12.7k5 gold badges66 silver badges96 bronze badges

Comments

Kimbly Labs · Accepted Answer · 2023-03-21 08:53:05Z

-1

It opens two tabs of the browser. Also you are running the application on port 2000 while opening browser at port 5000.

answered Mar 21, 2023 at 8:53

Kimbly Labs

1

Collectives™ on Stack Overflow

Open browser automatically when Python code is executed

3 Answers 3

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related