What's a good way to provide additional decoration/metadata for Python function parameters?

Question

We\'re considering using Python (IronPython, but I don\'t think that\'s relevant) to provide a sort of \'macro\' support for another application, which controls a piece of equip

Answer 1

Decorators are a good way to add metadata to functions. Add one that takes a list of types to append to a .params property or something:

def takes(*args):
    def _takes(fcn):
        fcn.params = args
        return fcn
    return _takes

@takes("time", "temp", "time")
def do_stuff(start_time, average_temp, stop_time):
    pass