0.24.0 DateTimeIndex: union() got an unexpected keyword argument 'sort' #24994
Description
Code Sample, a copy-pastable example if possible
import pandas as pd index1 = pd.DataFrame(index=pd.to_datetime(['19900101'])).index index2 = index1.copy() index1.union(index2, sort=False) TypeError: union() got an unexpected keyword argument 'sort'Problem description
The 'sort' argument works with 'difference' and 'intersection' but fails on 'union' for DateTimeIndex.