em.py

# down vote
def send_email(user, pwd, recipient, subject, body):
    import smtplib

    gmail_user = user
    gmail_pwd = pwd
    FROM = user
    TO = recipient if type(recipient) is list else [recipient]
    SUBJECT = subject
    TEXT = body

    # Prepare actual message
    message = """From: %s\nTo: %s\nSubject: %s\n\n%s
    """ % (FROM, ", ".join(TO), SUBJECT, TEXT)
    # try:
    #     server = smtplib.SMTP("smtp.gmail.com", 587)
    #     server.ehlo()
    #     server.starttls()
    #     server.login(gmail_user, gmail_pwd)
    #     server.sendmail(FROM, TO, message)
    #     server.close()
    #     print('successfully sent the mail')
    # except:
    #     print("failed to send mail")

    server = smtplib.SMTP("smtp.gmail.com", 587)
    server.ehlo()
    server.starttls()
    server.login(gmail_user, gmail_pwd)
    server.sendmail(FROM, TO, message)
    server.close()
    print('successfully sent the mail')
    print("failed to send mail")


send_email('tctctcly@gmail.com', 'Lyulyu!13', 'yu.leng@gta-travel.com', 'Test from pyhton', 'TEST, TEST, TEST.')

# # SMTP_SSL Example
# server_ssl = smtplib.SMTP_SSL("smtp.gmail.com", 465)
# server_ssl.ehlo() # optional, called by login()
# server_ssl.login('tctctcly@gmail.com', 'Lyulyu!13')  
# # ssl server doesn't support or need tls, so don't call server_ssl.starttls() 
# server_ssl.sendmail(FROM, TO, message)
# #server_ssl.quit()
# server_ssl.close()
# print 'successfully sent the mail'