Get mean(average) of rows and columns:

import pandas as pd

df = pd.DataFrame([[10, 20, 30, 40], [7, 14, 21, 28], [5, 5, 0, 0]],
                  columns=['Apple', 'Orange', 'Banana', 'Pear'],
                  index=['Basket1', 'Basket2', 'Basket3'])

df['Mean Basket'] = df.mean(axis=1)
df.loc['Mean Fruit'] = df.mean()

print(df)

C:\pandas>python example39.py
                Apple  Orange  Banana       Pear  Mean Basket
Basket1     10.000000    20.0    30.0  40.000000         25.0
Basket2      7.000000    14.0    21.0  28.000000         17.5
Basket3      5.000000     5.0     0.0   0.000000          2.5
Mean Fruit   7.333333    13.0    17.0  22.666667         15.0
 
C:\pandas>