popitem(last=True) The popitem() method for ordered dictionaries returns and removes a (key, value) pair. The pairs

timezone.dst(dt) Always returns None.

class collections.UserList([list]) Class that simulates a list. The instance’s contents are kept in a regular list, which is

array.fromfile(f, n) Read n items (as machine values) from the file object f

somenamedtuple._fields Tuple of strings listing the field names. Useful for introspection and for creating new named tuple types

class collections.abc.ByteString ABCs for read-only and mutable sequences.

time.__str__() For a time t, str(t) is equivalent to t.isoformat().

array.tolist() Convert the array to an ordinary list with the same items.

class collections.abc.Hashable class collections.abc.Sized class collections.abc.Callable

timedelta.max The most positive timedelta object, timedelta(days=999999999, hours=23, minutes=59, seconds=59