I am calculating a new column in dataframe using the below logic
import datetime
import pandas as pd
# BDay is business day, not birthday...
from pandas.tseries.offsets import BDay
df.StartDate_Prior = (df.StartDate - BDay(1))
df.StartDate
0 2020-11-24
1 2020-11-19
2 2020-11-09
3 2020-11-10
4 2020-11-12
But when I try select the datafrme Like below
df13[['StartDate_Prior','fyPlannedStartDate']]
Error:
"['StartDate_Prior'] not in index"
How to fix this?