Python正则表达式校验某个字符串是否是合格的email

import re;

REGEX_PATTERN = "^[a-zA-Z0-9_+&*-]+(?:\\.[a-zA-Z0-9_+&*-]+)*@(?:[a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,7}$"

# 校验某个字符串是否是合格的email地址
def IsValidEmail(email):
    if (re.search(REGEX_PATTERN, email)):
        print("有效的email地址")
    else:
        print("无效的email地址")

if __name__ == '__main__':
    email = "rohit.gupta@mcnsolutions.net"
    IsValidEmail(email)

    email = "praveen@c-sharpcorner.com"
    IsValidEmail(email)

    email = "inform2atul@gmail.com"
    IsValidEmail(email)

    # valid email addresses
    email = "alice@example.com"
    IsValidEmail(email)
    email = "alice.bob@example.com"
    IsValidEmail(email)
    email = "alice@example.me.org"
    IsValidEmail(email)

    # invalid email addresses
    email = "alice.example.com"
    IsValidEmail(email)
    email = "alice..bob@example.com"
    IsValidEmail(email)
    email = "alice@.example.me.org"
    IsValidEmail(email)