dek3_2.py

# Version 3
def print_before2(label):
  
    def decorator(func):
      
        @functools.wraps(func)
        def wrapped(*args, **kwds):
            print(label, func.__name__, args, kwds)
            return func(*args, **kwds)
          
        return wrapped
      
    return decorator

  
@print_before2('DEBUG:')
def important(lives, money, valuables=None):
    pass
  

# Test at the command line:
>>> important(23, 105.17, valuables=['dogs'])
DEBUG: important (23, 105.17) {'valuables': ['dogs']}