A basic command prompt style thing for Python

prompt.py

def ls(params):
    # do whatever
    return True

commands = {
    'ls': ls,
    # ... whatever here
}
while True:
    content = raw_input().split(' ')
    command = content[0]
    params  = content[1:]
    print('you ran the "{name}" command'.format(name=command))
    if command == 'quit':
        break;
    if command in commands:
        commands[command](params)
    else:
        print('the command "{name}" doesn\'t exist'.format(name=command))