psf--black/tests/data/cases/pattern_matching_simple.py

# flags: --minimum-version=3.10
# Cases sampled from PEP 636 examples

match command.split():
    case [action, obj]:
        ...  # interpret action, obj

match command.split():
    case [action]:
        ...  # interpret single-verb action
    case [action, obj]:
        ...  # interpret action, obj

match command.split():
    case ["quit"]:
        print("Goodbye!")
        quit_game()
    case ["look"]:
        current_room.describe()
    case ["get", obj]:
        character.get(obj, current_room)
    case ["go", direction]:
        current_room = current_room.neighbor(direction)
    # The rest of your commands go here

match command.split():
    case ["drop", *objects]:
        for obj in objects:
            character.drop(obj, current_room)
    # The rest of your commands go here

match command.split():
    case ["quit"]:
        pass
    case ["go", direction]:
        print("Going:", direction)
    case ["drop", *objects]:
        print("Dropping: ", *objects)
    case _:
        print(f"Sorry, I couldn't understand {command!r}")

match command.split():
    case ["north"] | ["go", "north"]:
        current_room = current_room.neighbor("north")
    case ["get", obj] | ["pick", "up", obj] | ["pick", obj, "up"]:
        ...  # Code for picking up the given object

match command.split():
    case ["go", ("north" | "south" | "east" | "west")]:
        current_room = current_room.neighbor(...)
        # how do I know which direction to go?

match command.split():
    case ["go", ("north" | "south" | "east" | "west") as direction]:
        current_room = current_room.neighbor(direction)

match command.split():
    case ["go", direction] if direction in current_room.exits:
        current_room = current_room.neighbor(direction)
    case ["go", _]:
        print("Sorry, you can't go that way")

match event.get():
    case Click(position=(x, y)):
        handle_click_at(x, y)
    case KeyPress(key_name="Q") | Quit():
        game.quit()
    case KeyPress(key_name="up arrow"):
        game.go_north()
    case KeyPress():
        pass  # Ignore other keystrokes
    case other_event:
        raise ValueError(f"Unrecognized event: {other_event}")

match event.get():
    case Click((x, y), button=Button.LEFT):  # This is a left click
        handle_click_at(x, y)
    case Click():
        pass  # ignore other clicks


def where_is(point):
    match point:
        case Point(x=0, y=0):
            print("Origin")
        case Point(x=0, y=y):
            print(f"Y={y}")
        case Point(x=x, y=0):
            print(f"X={x}")
        case Point():
            print("Somewhere else")
        case _:
            print("Not a point")