DOC: Unused order argument in factorize (original) (raw)

def factorize(values, sort=False, order=None, na_sentinel=-1): """ Encode input values as an enumerated type or categorical variable

Parameters
----------
values : ndarray (1-d)
    Sequence
sort : boolean, default False
    Sort by values
order :
na_sentinel: int, default -1
    Value to mark "not found"

Returns
-------
labels : the indexer to the original array
uniques : the unique values

note: an array of Periods will ignore sort as it returns an always sorted PeriodIndex
"""

But it isn't used anywhere. Technically this is an API change, if people aren't using kwargs. So I'll add it to the deprecation list.