手机号进行md5加密 python

import pandas as pd
import hashlib

def get_md5(x):
    md = hashlib.md5()
    md.update(x.encode())
    md_result = md.hexdigest()
    return md_result


def to_md5(file):
    df = pd.read_excel(file)
    columns = df.columns.tolist()[0] # 
    df[columns] = df[columns].astype('str')
    df[columns] = df[columns].apply(get_md5)
    print(df)
    df.to_csv('/Users/admin/Desktop/to_dm5.txt', sep='t', index=False, encoding='utf_8') # 加密后的文件

to_md5('/Users/admin/Desktop/Untitled.xlsx') # 原文件