Printing valid email ids from a file using regular expressions

import re

def validitycheck():
        fhandle = open(r"C:\\Users\\Aishwarya\Desktop\\temp.txt")
        for line in fhandle:
          if line.endswith("@gmail.com"):
            print (line)
            line = mailid
            pattern = re.compile(r"[\w.-]+@[\w.-]+.\w+@gmail.com")
            matchobject = pattern.match(mailid)
            
            if(matchobject):
                print("your mail id",line,"is valid")
            else:
                print("your mail id is invalid")
          else:
             print("no mail id as such")

validitycheck()