PEP 622 proposal of match-case syntax https://www.python.org/dev/peps/pep-0622/#performance-considerations

proposal.py

match number:
    case 0:
        print("Nothing")
    case 1:
        print("Just one")
    case 2:
        print("A couple")
    case -1:
        print("One less than nothing")
    case 1-1j:
        print("Good luck with that...")
        
match greeting:
    case "":
        print("Hello!")
    case name:
        print(f"Hi {name}!")