socket.send : (11, 'Resource temporarily unavailable')

[Gabriel Rossetti]

Hello everyone,

I get a (11, 'Resource temporarily unavailable') error when I try to 
send a file using a socket. Is there s size limit? I tried sending a 
smaller file and ii poses no problem. Am I doing something wrong? Here 
is the code:

def sendMessage(host, port, msg):

    if isinstance(msg, unicode):
        msg = msg.encode("utf-8")
   
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.connect((host, port))
    sock.setblocking(0)
    totalsent = 0
    while totalsent < len(msg):
        sent = sock.send(msg[totalsent:])
        if sent == 0:
            raise RuntimeError, "socket connection broken"
        totalsent = totalsent + sent
    sock.close()

Thank you,
Gabriel