Can't connect to Flask web service, connection refused

Question

I\'m trying to run a simple web server on a Raspberry Pi with Flask. When I run my Flask app, it says:

running on http://127.0.0.1:5000/

Answer 1

If you have debug = True inside your app.run(), then it will not be visible to other machines either. Specify host and port inside app.run() without the debug = True.