def make_iterator():
crap = set()
for item in map(self.perm_type, self._iter()):
fc = nifty_collections.FrozenBag(item)
if fc in crap:
continue
else:
yield item
crap.add(fc)
def __init__(self,
iterable_or_length,
domain=None,
n_elements=None,
fixed_map={},
degrees=None,
is_combination=False,
slice_=None,
perm_type=None):
self.sequence = tuple(iterable_or_length) if \
isinstance(iterable_or_length, collections.Iterable) else \
sequence_tools.CuteRange(iterable_or_length)
self.sequence_length = len(self.sequence)
self._sequence_frozen_bag = \
nifty_collections.FrozenBag(self.sequence)
self.is_recurrent = len(set(self.sequence)) < len(self.sequence)
self.n_elements = n_elements if n_elements is not None else \
len(self.sequence)
self.domain = (domain or sequence_tools.CuteRange(
self.sequence_length))[:self.n_elements]
self.fixed_map = {
key: value
for key, value in fixed_map.items() if key in self.domain
}
self.degrees = \
degrees or sequence_tools.CuteRange(self.sequence_length)
self.is_combination = is_combination
self.is_degreed = (self.degrees != sequence_tools.CuteRange(
self.sequence_length))
self.slice_ = slice_
if perm_type is None:
self.perm_type = tuple
self.is_typed = False
else:
self.perm_type = FruityTuple
self.is_typed = True