Simple Thread Limiter (TCP Socket)

import os
import sys
import socket
import threading
def puts(string):
    sys.stdout.write(string + "\n")

recv_limit = 128
thread_limit = 100
thread_start = 0

def client(conn, addr):
    global thread_start
    try:
        TypeData = conn.recv(recv_limit)
        if (len(TypeData) > recv_limit):
            puts("Client sent more data than recv_limit.")
        else:
            puts("OK")
    except Exception:
        thread_start -= 1
        puts("client disconnected")
        if (conn):
            conn.close()

sock = socket.socket()
try:
    sock.bind("127.0.0.1", 8000)
except socket.error:
    puts("Addr already in use")

sock.listen(0)

while (recv_limit):
    conn, addr = sock.accept()
    puts("conn recv [%s:%s]" % (addr[0], addr[1]))
    if (thread_start == thread_limit):
        conn.close()
        puts("Client exceeded maximum thread limit.")

    else:
        thread = threading.Thread(target=client, args=(conn,addr,)).start()
        thread_start +=1