How is continuous service operability ensured?

Continuous service operation in Python is ensured by several methods:

• Exception handling: to prevent the service from crashing due to errors, exceptions need to be handled properly.
• Using control loops: for example, the main service loop can restart tasks after failures.
• Monitoring and restarting: external tools (systemd, supervisord, Docker) monitor the process and restart it upon failure.
• Multithreading or asynchronous processing: allow the service to handle tasks in parallel and avoid blocking.

Example of a simple error-handling loop:

while True:
    try:
        # main service logic
        do_work()
    except Exception as e:
        log_error(e)
        time.sleep(5)  # pause before retrying