import numpy as np
import pandas as pd
education_df = pd.read_csv('C:\\Users\\enaama\\Documents\\analyse\\StudentsPerformance.csv')

import matplotlib.pyplot as plt
plt.style.use('seaborn-colorblind')

education_df

cols = list(education_df.columns)
new_cols = []
for col in cols:
    new_cols.append(col.strip().replace('  ', ' ').replace(' ', '_').lower())
education_df.columns = new_cols