pd12.py

def logged(fn):
    from functools import wraps
    from datetime import datetime, timezone
    
    @wraps(fn)
    def wrapper(*args, **kwargs):
        run = datetime.now(timezone.utc)
        res = fn(*args, **kwargs)
        print('{0}: called {1}'.format(fn.__name__, run))
        return res
        
    return wrapper
    
@logged
def product(a,b,c):
  print('The product of a*b*c:', a*b*c)

product(3,5,6)