1import pandas as pd
2
3df = pd.DataFrame({'A': ['x', 'x', 'x','y','y']
4 , 'B': ['a', 'c', 'c','b','b']})
5print (df)
6 A B
70 x a
81 x c
92 x c
103 y b
114 y b
12
13df = df.groupby(['A', 'B']).size().reset_index(name='Size')
14print (df)
15 A B Size
160 x a 1
171 x c 2
182 y b 2
19