Pandas offset DatetimeIndex to next business if date is not a business day

Question

I have a DataFrame which is indexed with the last day of the month. Sometimes this date is a weekday and sometimes it is a weekend. Ignoring holidays, I\'m looking to offset

Answer 1

You can map the index with a lambda function, and set the result back to the index.

df.index = df.index.map(lambda x: x if x.dayofweek < 5 else x + pd.DateOffset(7-x.dayofweek))

df
            A
2015-04-30  0
2015-06-01  0
2015-06-30  0