4.10. index_realsorted()

natsort.index_realsorted(seq, key=None, reverse=False, alg=0)

This is a wrapper around index_natsorted(seq, alg=ns.REAL).

Parameters:
  • seq (iterable) – The input to sort.
  • key (callable, optional) – A key used to determine how to sort each element of the sequence. It is not applied recursively. It should accept a single argument and return a single value.
  • reverse ({True, False}, optional) – Return the list in reversed sorted order. The default is False.
  • alg (ns enum, optional) – This option is used to control which algorithm natsort uses when sorting. For details into these options, please see the ns class documentation. The default is ns.REAL.
Returns:

out – The ordered indexes of the input.
Return type:

tuple

See also

realsorted(), order_by_index()

Examples

Use index_realsorted just like the builtin sorted:

>>> a = ['num5.10', 'num-3', 'num5.3', 'num2']
>>> index_realsorted(a)
[1, 3, 0, 2]