@command
def simple_greet(name):
  if name == 'John':
    raise CommandrUsageError("John is not a valid name.")
  print 'Hi %s!' % name
Creates the object.
dataset/ETHPy150Open tellapart/commandr/example.py/simple_greet--crossover with--dataset/ETHPy150Open evennia/evennia/evennia/commands/default/building.py/CmdCreate.func