Python - pandas - sum

import pandas as pd

data = [[1,2,3], [4,5,6], [7,8,9]]

# create table DataFrame with data
df = pd.DataFrame(data)

# sum in rows and put results in new column "sum"
df['sum'] = df.sum(axis=1)

# display all
print(df)

'''
    0  1  2  sum
0  1  2  3    6
1  4  5  6   15
2  7  8  9   24
'''

data = [[1,2,3], [4,5,6], [7,8,9]]

for row in data:
    print(row, sum(row))

'''
[1, 2, 3] 6
[4, 5, 6] 15
[7, 8, 9] 24
'''