filter dates using pandas from dataframe

Question

I have a column of dates. I need to filter out those dates that fall between today's date and end of the current month . If the dates fall between these dates then the next column showns "Y"

Date	Column
01/02/2021
03/02/2021
31/03/2021	Y
01/03/2021
07/03/2021	Y
08/03/2021	Y

Since today's date is 07/03/2021 three dates fall between 07/03/2021 and 31/03/2021.

Answer 1

Convert into datetime column using specific time format and compare with today 's timestamp

df.Date = pd.to_datetime(df.Date, format='%d/%m/%Y')

today = pd.to_datetime('today').normalize()
end_of_month = today + pd.tseries.offsets.MonthEnd(1)

df['Column'] = np.where((df.Date >= today) & (df.Date <= end_of_month), 'Y', '')

Output

        Date Column
0 2021-02-01       
1 2021-02-03       
2 2021-03-31      Y
3 2021-03-01       
4 2021-03-07      Y
5 2021-03-08      Y
6 2021-04-02