import pandas as pd
import numpy as np
from scipy.stats import iqr

df = pd.read_csv(r'D:\HTEX\Pythonbk\codesdata\bmi.csv')

q1, q3 = df['height'].quantile(q=[.25, .75])
iqr1 =q3 - q1

q3, q1 = np.percentile(df['height'], [75 ,25])
iqr2 = q3 - q1

iqr3 = iqr(df['height'])

print(iqr1, iqr2, iqr3)