What type of scan is the script used to run on a target host in this python code?

import socket, threading

def TCP_connect(ip, port_number, delay, output): TCPsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) TCPsock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) TCPsock.settimeout(delay) try: TCPsock.connect((ip, port_number)) output[port_number] = 'Listening' except: output[port_number] = ''

def scan_ports(host_ip, delay):

threads = [] # To run TCP_connect concurrently output = {} # For printing purposes

# Spawning threads to scan ports for i in range(10000): t = threading.Thread(target=TCP_connect, args=(host_ip, i, delay, output)) threads.append(t)

# Starting threads for i in range(10000): threads[i].start()

# Locking the main thread until all threads complete for i in range(10000): threads[i].join()

# Printing listening ports from small to large for i in range(10000): if output[i] == 'Listening': print(str(i) + ': ' + output[i])