import getpass, imaplib
#your mail id = type  your mail id
#your password = type ypur password
username = 'your mail id'
password = 'your password'
M = imaplib.IMAP4_SSL('IMAP.gmail.com',993)
M.login(username, password)
M.select()
typ, data = M.search(None, 'UNSEEN')
for num in data[0].split():
    typ, data = M.fetch(num, '(RFC822)')
    print 'Message %s\n%s\n' % (num, data[0][1])
M.close()
M.logout()