send mail using gmail.

send_from_gmail.py

import smtplib

gmail_user = "from@gmail.com"
gmail_pwd = "frompwd"


TO = 'to@someother.com'
SUBJECT = "Testing sending using gmail"
TEXT = "Testing sending mail using gmail servers"
server = smtplib.SMTP('smtp.gmail.com', 587)
server.ehlo()
server.starttls()
server.login(gmail_user, gmail_pwd)
BODY = '\r\n'.join(['To: %s' % TO,
        'From: %s' % gmail_user,
        'Subject: %s' % SUBJECT,
        '', TEXT])

server.sendmail(gmail_user, [TO], BODY)
print ('email sent')

#If got the following error:
'''
Traceback (most recent call last):
  File "send_from_gmail.py", line 13, in <module>
    server.login(gmail_user, gmail_pwd)
  File "/usr/lib/python2.7/smtplib.py", line 615, in login
    raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (534, '5.7.14 <https://accounts.google.com/...........................................................................>
 Please log in via your web browser and\n5.7.14 then try again.\n5.7.14 Learn more at\n5.7.14 https://support.google.com/mail/bin/answer.py?answer=XXXX XXXXXXX.2 - gsmtp')

Access : https://www.google.com/settings/security/lesssecureapps and set 
Access for less secure apps : turn off
'''