Problem with repl server shutdown

Part of the answer references GPT, GPT_Pro better solve the problem

Keeping the repl server running is generally a matter of finding a server that provides a persistent environment, rather than one that only provides short runs. If you don't want to pay, you can use a free cloud server. Heroku, for example, offers free dyno(that is, the runtime environment), and its dyno can always be turned on(except for periodic restarts).

The steps are as follows:

1. Register an account on Heroku's official website.
2. Install the Heroku CLI tool. Type 'heroku login' in the command line interface and enter the user name and password to login.
3. Use Git to upload your code to GitHub and then connect to GitHub via the Heroku CLI.
4. Create an app on Heroku that connects to the code base on GitHub.
5. Configure the application environment.
6. Configures the command line of the server.
7. Start the server with the command 'heroku ps:scale web=1'.

// 代码示例：
from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello():
    return "Hello World!"
    
if __name__ == '__main__':
    app.run()

That's how you implement a way to keep the server running on the repl. I hope I can help you.
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