def lazy(f):
'''
Prevents certain properties from having to be recomputed each time they are referenced
def wrapper(*args, **kwargs):
o = args[0]
if "_lazy" not in o.__dict__:
o.__dict__["_lazy"] = {}
name = f.__name__ + str(args) + str(kwargs),
if name not in o.__dict__["_lazy"]:
o.__dict__["_lazy"][name] = f(*args, **kwargs)
return o.__dict__["_lazy"][name]
wrapper.__name__ = f.__name__
return wrapper
