py

cryptomachine = Fernet(key)

with open(inputfile, 'r') as file:
    while True:
        token = file.read(blocksize)
        if not token: break
        encToken = cryptomachine.encrypt(token)
        if args.verbose:
            print encToken
        if twitter_flag:
            try:
                twitter_api.PostUpdate(encToken)
            except twitter.error:
                print "Unable to post to twitter"
                exit(1)

        time.sleep(interval)