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Reference: Collections

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Pages in this section

  • Counter and defaultdict reference — Counter construction, most_common, elements, total, and the arithmetic operators; defaultdict factories and behaviour.
  • deque reference — the constructor (iterable, maxlen), every method, the complexity table, and a list-versus-deque comparison.
  • namedtuple, OrderedDict, and ChainMap reference — the namedtuple factory and its _-methods (_make, _asdict, _replace, _fields, defaults); OrderedDict extras (move_to_end, popitem); and ChainMap (maps, new_child, parents).