python读取eml文件并用正则表达式匹配邮箱的代码

import email
import os
import re
from email import policy
from email.parser import BytesParser


e_a = ['Honeywell.com', 'honeywell.com', 'garrettmotion.com', 'HONEYWELL.COM', 'resideo.com']
for f in os.listdir("./数据源/"):
    # print(f)
    text = ""
    with open("./数据源/" + f, 'rb') as fp:
        msg = BytesParser(policy=policy.default).parse(fp)
    fjr = email.utils.parseaddr(msg.get("from"))[1]
    sjr = email.utils.parseaddr(msg.get('to'))[1]
    csr = email.utils.parseaddr(msg.get('cc'))[1]
    print("发件人", fjr)
    print("收件人", sjr)
    print("抄送人", csr)
    if msg.get_body(preferencelist=('plain'))==None:
        text = text + " " + fjr + " " + " " + " " + " " + sjr + " " + " " + csr
    else:
        text = msg.get_body(preferencelist=('plain')).get_content()
        text = text + " " + fjr + " " + " " + " " + " " + sjr + " " + " " + csr
    # print(text)

    prog = re.compile(r'[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+')
    res = prog.findall(text)
    for e in res:
        res1 = e.split("@")[1]
        if res1 in e_a:
            print(f, "在")
            ori = "./数据源/" + f
            now = "./是/" + f
            os.rename(ori, now)
            break
    else:
        ori = "./数据源/" + f
        now = "./否/" + f
        os.rename(ori, now)
        print(f, "不在")

# -*- coding:utf-8 -*-
# 邮箱格式-正则表达式匹配
 
import re
 
# 一次匹配多个邮箱
str1 = 'aaf ssa@ss.net asdf  asdb@163.com.cn asdf ss-a@ss.net asdf asdd.cba@163.com afdsaf'
 
reg_str1 = r'([\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+)'
 
mod = re.compile(reg_str1)
 
items = mod.findall(str1)
 
for item in items:
    print item

# 只匹配一个
str2 = 'ssa_a-c@ss.net.cn'
reg_str2 = r'(^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$)'
mod = re.compile(reg_str2)
items = mod.findall(str2)
 
for item in items:
    print item