def superTuple(name, attributes):
"""Creates a Super Tuple class."""
dct = {}
#Create __new__.
nargs = len(attributes)
def _new_(cls, *args):
if len(args) != nargs:
raise TypeError("%s takes %d arguments (%d given)." % (cls.__name__,
nargs,
len(args)))
return tuple.__new__(cls, args)
dct["__new__"] = staticmethod(_new_)
#Create __repr__.
def _repr_(self):
contents = [repr(elem) for elem in self]
return "%s<%s>" % (self.__class__.__name__,
", ".join(contents))
dct["__repr__"] = _repr_
#Create attribute properties.
def getter(i):
return lambda self: self.__getitem__(i)
for index, attribute in enumerate(attributes):
dct[attribute] = property(getter(index))
#Set slots.
dct["__slots__"] = []
#Return class.
return type(name, (tuple,), dct)
