Helps test if server & client machines can connect

simpleclient.py

import socket
import sys

host = input("Host >> ")
port = int(input("Port >> "))
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

try:
    s.connect((host, port))
except OSError:
    print("Socket attempted to connect to an unreachable network")
except ConnectionRefusedError:
    print("No connection could be made")

print("Connected to {}:{}".format(host, port))

while 1:
    try:
        msg = input("\nMessage: ")
        print("Sending message...")
        s.send(str.encode(msg))
        print("Message sent, waiting for response...")
        data = s.recv(1024)
        print("Data recieved, decoding...")
        decoded = data.decode("utf-8")
        print("Message recieved from server:")
        print(decoded)
    except (ConnectionResetError, OSError, KeyboardInterrupt):
        print("Exception occurred, closing connection...")
        s.close()
        sys.exit()

simpleserver.py

import socket
import sys
import threading

host = input("Host >> ")
port = int(input("Port >> "))
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

def client_handler(client, addr):
    ip_port = "{}:{}".format(addr[0], addr[1])
    while True:
        try:
            r_msg = client.recv(1024)
            if r_msg:
                decoded = r_msg.decode("utf-8")
                print("\nRecieved message")
                print("{} -> {}".format(ip_port, decoded))
                print("Echoing...")
                print("{} -> {}".format(decoded, ip_port))
                try:
                    client.send(str.encode(decoded))
                    print("Sent")
                except (BrokenPipeError, OSError):
                    raise ConnectionResetError

        except (ConnectionResetError, ConnectionAbortedError, OSError):
            client.close()
            print("[*] Client {} dropped".format(ip_port))

try:
    s.bind((host, port))
except OSError:
    print("[!] Unable to bind to port {}".format(port))
    sys.exit()

print("[!] Socket bound")
s.listen(5)
print("[!] Socket listening on {}:{}".format(host, port))

while True:
    try:
        client, addr = s.accept()
    except OSError:
        pass
    except KeyboardInterrupt:
        s.close()
        sys.exit()
    else:
        print("\n[*] Accepted connection from: {}:{}".format(addr[0], addr[1]))
        threading.Thread(target=client_handler, args=(client, addr)).start()