how to inner join table a and b in python show me script

Assuming you have two tables "a" and "b" with a common column "id", you can use the following script to perform an inner join in Python using pandas library:

import pandas as pd

# create table a
a = pd.DataFrame({'id': [1, 2, 3, 4], 'name': ['John', 'Alice', 'Bob', 'Sarah']})

# create table b
b = pd.DataFrame({'id': [2, 4, 5], 'age': [25, 30, 35]})

# perform inner join on column 'id'
result = pd.merge(a, b, on='id', how='inner')

print(result)

Output:

   id   name  age
0   2  Alice   25
1   4  Sarah   30

The script uses the pd.merge() function to merge the two tables on the common column "id" using an inner join. The resulting table only includes rows where the "id" column exists in both tables "a" and "b"