My task X

%%time
from nbproject import header

header()

id	ZGhPhKR2SkXQ
version	0
time_init	2022-05-14 19:15
time_run	2025-04-30 11:02
pypackage	nbproject==0.11.1 pandas==2.2.3 pydantic==2.11.4

CPU times: user 651 ms, sys: 35 ms, total: 686 ms
Wall time: 685 ms

import pandas as pd
import pydantic

df = pd.DataFrame({"a": [1, 2, 3], "b": [2, 3, 4]})

df

	a	b
0	1	2
1	2	3
2	3	4

df.mean()

a    2.0
b    3.0
dtype: float64