import imaplib
import sys
from random import choice

username = 'youremail@gmail.com'
password = 'yourpassword'

debug_mode = False

def print_shortened_header(fullheader, desired_header_line_names):
    for headerline in fullheader.split('\n'):
        isDesiredHeader = False
        for desired_header_name in desired_header_line_names:
            if (headerline.find(desired_header_name) == 0):
                isDesiredHeader = True
                break
        if (isDesiredHeader):
            print headerline

def printmailmsg(msgdata):
    msgparts = msgdata[0][1].split('\r\n\r\n', 1)
    if len(msgparts) == 2:
        header = msgparts[0]
        body = msgparts[1]
        
        print_shortened_header(header, ['Date:', 'From:', 'To:', 'Subject:'])
        print body        

def printdbg(msg):
    if debug_mode:
        print msg
try:
    printdbg("Connecting to server...")
    server = imaplib.IMAP4_SSL("imap.gmail.com")
    printdbg("Logging in...")
    server.login(username, password)
    printdbg("Selecting mailbox.")
    server.select('[Gmail]/All Mail') #sent-mail-apr-2000
    printdbg("Searching for messages...")
    typ, msgnums = server.search(None, 'ALL')
    printdbg(typ)
    #printdbg(msgnums
    indexes = msgnums[0].split();
    printdbg("Picking a random message from among " + str(len(indexes)) + " messages.")
    typ, data = server.fetch(choice(indexes), '(RFC822)')
    printmailmsg(data)
    
#    printdbg("Fetching messages..."
#    for num in msgnums[0].split():
#        typ, data = server.fetch(num, '(RFC822)')
#        printdbg(data
#        printdbg("Press the any key to continue."
#        input = raw_input() 
        #server.store(num, '+FLAGS', '\\Seen')
    
    printdbg("Closing server connection.")
    server.close()
    printdbg("Logging out.")
    server.logout()
except Exception, inst:
    print "Exception caught: " + str(inst)