Implement a regular expression in Python to validate an email address.

Sure , I can help you with that ! Here ' s a regular expression in Python that you can use to validate an email address : \n `` ` python \n import re \n def is _ valid _ email ( email ): \n pattern = r ' ^ [ a - z A - Z 0 - 9 ._ % +- ]+ @ [ a - z A - Z 0 - 9 .- ] +\ .[ a - z A - Z ]{ 2 , }$ ' \n if re . match ( pattern , email ): \n return True \n else : \n return False \n `` ` \n You can use this function to check if an email address is valid or not . For example : \n `` ` python \n email = " j ohn . do e @ example . com " \n if is _ valid _ email ( email ): \n print ( email , " is a valid email address ") \n else : \n print ( email , " is not a valid email address ") \n `` ` \n This will output : " j ohn . do e @ example . com is a valid email address " </s>