Python从另一个csv追加新列

import pandas as pd
import csv

original_data = pd.read_csv('original.csv')
new_column_data = pd.read_csv('new_column.csv')

if original_data.shape[0] != new_column_data.shape[0]:
    print("两个CSV文件的行数不匹配！")
    exit()

original_data['new_column'] = new_column_data['new_column']

original_data.to_csv('updated_data.csv', index=False)