regex - Python function that corrects a email domain -

okay, have function construct_email(name, domain):

def construct_email(name, domain):     if domain == true:         print 'true'     else:         print'none'     return name + "@" + domain 

this function isn't big or anything, it's suppose output email address. have other function correct_domain(domain): suppose check domain name that's been input in construct_email(name, domain):

import re def correct_domain(domain):     if re.search(r'^\.|\.$', domain) or re.search(r'\.\.', domain):         return false     elif re.search(r'\.', domain):         return true     else:         return false 

my question is, how do this?

if i'm understanding correctly:

import re  def construct_email(name, domain):     if not check_domain(domain):         return false     return name + "@" + domain  def check_domain(domain):     dots = re.findall(r"\.", domain)     if (len(dots) != 1) or domain.startswith(".") or domain.endswith("."):         return false     return true  def main():     while true:         email = construct_email(raw_input("name: "), raw_input("domain: "))         if email:             break         print "bad domain, try again...\n"      print email     #other code here...