lang/python/ PythonCases

See https://datagy.io/python-switch-case/ and https://learnpython.com/blog/python-match-case-statement/

Note that this appeared in Python 3.10

Examples

command = 'Hello, World!'
match command:
    case 'Hello, World!':
        print('Hello to you too!')
    case 'Goodbye, World!':
        print('See you later')
    case other:
        print('No match found')

def file_handler_v1(command):
    match command.split():
        case ['show']:
            print('List all files and directories: ')
            # code to list files
        case ['remove', *files]:
            print('Removing files: {}'.format(files))
            # code to remove files
        case _:
            print('Command not recognized')

def file_handler_v2(command):
    match command.split():
        case ['show']:
            print('List all files and directories: ')
            # code to list files
        case ['remove' | 'delete', *files] if '--ask' in files:
            del_files = [f for f in files if len(f.split('.'))>1]
            print('Please confirm: Removing files: {}'.format(del_files))
            # code to accept user input, then remove files
        case ['remove' | 'delete', *files]:
            print('Removing files: {}'.format(files))
            # code to remove files
        case _:
            print('Command not recognized')