How do I calculate the Average values with Pandas as shown bellow in Excel?

Question

Date Adj Close 8 days SMA 05/11/2020 1.18 06/11/2020 1.20 09/11/2020 1.16 10/11/2020 1.12 11/11/2020 1.16 12/11/2020 1.14 13/11/2020 1.13 16/1