/Users/hihi/Desktop/Sparta/Projects/prac/venv/bin/python /Users/hihi/Desktop/Sparta/Projects/prac/app.py
Address already in use
Port 5000 is in use by another program. Either identify and stop that program, or start the server with a different port.
On macOS, try disabling the 'AirPlay Receiver' service from System Preferences -> Sharing.
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Serving Flask app 'app'
 * Debug mode: on

종료 코드 1(으)로 완료된 프로세스

플라스크 설치하고 처음 실행하는중입니다.

올려주신 코드스니펫을 복붙했는데 localhost 5000 이 이미 사용중이라는 메세지가 뜹니다.