Connect to FTP server using raw socket

raw-ftp.py

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect (('localhost', 21))

commands = ['USER hudan\r\n', 'PASS 123\r\n', 'HELP\r\n', 'QUIT\r\n']
i = 1
while True:
    try:
        if i > len(commands):            
            msg = str(s.recv(1024))        
            print msg.strip()
            break
        s.send(commands[i-1])        
        msg = str(s.recv(1024))        
        print msg.strip()
        i += 1
                
    except socket.error, exc:
        # print exc
        s.close()
        break

"socket.SOCK_STREAM" <-- does not look like a RAW socket to me