python - Gmail アカウントからメールを送信する - Python

Question

以下のコードの何が問題なのか、誰か親切に教えてもらえますか? ティア:)))

import smtplib
if raw_input("if you want to send a message from a gmail account, type yes: ") == 'yes':
    try:      
        sender = raw_input("from:\n")
        senders_pwd = raw_input("password:\n")
        recipient = raw_input("to:\n")
        print 'ok, now compile your message:'
        subject = raw_input("subject:\n")
        body = raw_input("your message:\n")
        message = "subject: %s\n%s" %(subject,body)

        server = smtplib.SMTP("smtp.gmail.com",587)
        server.ehlo()
        server.starttls()
        server.ehlo()
        print "ok, I've sent your email"
    except:
        print 'failed to send'