Breaking News: Grepper is joining You.com. Read the official announcement!

Python chat application

Add Answer

Open Oryx answered on March 14, 2022 Popularity 10/10 Helpfulness 5/10

answer Python chat application

related python chat

related chat application in python

Python chat application

Comment

# Python program to implement server side of chat room.
import socket
import select
import sys
'''Replace "thread" with "_thread" for python 3'''
from thread import *
 
"""The first argument AF_INET is the address domain of the
socket. This is used when we have an Internet Domain with
any two hosts The second argument is the type of socket.
SOCK_STREAM means that data or characters are read in
a continuous flow."""
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
 
# checks whether sufficient arguments have been provided
if len(sys.argv) != 3:
    print ("Correct usage: script, IP address, port number")
    exit()
 
# takes the first argument from command prompt as IP address
IP_address = str(sys.argv[1])
 
# takes second argument from command prompt as port number
Port = int(sys.argv[2])
 
"""
binds the server to an entered IP address and at the
specified port number.
The client must be aware of these parameters
"""
server.bind((IP_address, Port))
 
"""
listens for 100 active connections. This number can be
increased as per convenience.
"""
server.listen(100)
 
list_of_clients = []
 
def clientthread(conn, addr):
 
    # sends a message to the client whose user object is conn
    conn.send("Welcome to this chatroom!")
 
    while True:
            try:
                message = conn.recv(2048)
                if message:
 
                    """prints the message and address of the
                    user who just sent the message on the server
                    terminal"""
                    print ("<" + addr[0] + "> " + message)
 
                    # Calls broadcast function to send message to all
                    message_to_send = "<" + addr[0] + "> " + message
                    broadcast(message_to_send, conn)
 
                else:
                    """message may have no content if the connection
                    is broken, in this case we remove the connection"""
                    remove(conn)
 
            except:
                continue
 
"""Using the below function, we broadcast the message to all
clients who's object is not the same as the one sending
the message """
def broadcast(message, connection):
    for clients in list_of_clients:
        if clients!=connection:
            try:
                clients.send(message)
            except:
                clients.close()
 
                # if the link is broken, we remove the client
                remove(clients)
 
"""The following function simply removes the object
from the list that was created at the beginning of
the program"""
def remove(connection):
    if connection in list_of_clients:
        list_of_clients.remove(connection)
 
while True:
 
    """Accepts a connection request and stores two parameters,
    conn which is a socket object for that user, and addr
    which contains the IP address of the client that just
    connected"""
    conn, addr = server.accept()
 
    """Maintains a list of clients for ease of broadcasting
    a message to all available people in the chatroom"""
    list_of_clients.append(conn)
 
    # prints the address of the user that just connected
    print (addr[0] + " connected")
 
    # creates and individual thread for every user
    # that connects
    start_new_thread(clientthread,(conn,addr))    
 
conn.close()
server.close()

Popularity 10/10 Helpfulness 5/10 Language python

Source: www.geeksforgeeks.org

Tags: chat python

Link to this answer
Share Copy Link

Contributed on Mar 14 2022

Open Oryx

0 Answers Avg Quality 2/10

Closely Related Answers

python chat

Comment

import socket
from threading import Thread

# server's IP address
SERVER_HOST = "0.0.0.0"
SERVER_PORT = 5002 # port we want to use
separator_token = "<SEP>" # we will use this to separate the client name & message

# initialize list/set of all connected client's sockets
client_sockets = set()
# create a TCP socket
s = socket.socket()
# make the port as reusable port
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# bind the socket to the address we specified
s.bind((SERVER_HOST, SERVER_PORT))
# listen for upcoming connections
s.listen(5)
print(f"[*] Listening as {SERVER_HOST}:{SERVER_PORT}")


def listen_for_client(cs):
    """
    This function keep listening for a message from `cs` socket
    Whenever a message is received, broadcast it to all other connected clients
    """
    while True:
        try:
            # keep listening for a message from `cs` socket
            msg = cs.recv(1024).decode()
        except Exception as e:
            # client no longer connected
            # remove it from the set
            print(f"[!] Error: {e}")
            client_sockets.remove(cs)
        else:
            # if we received a message, replace the <SEP> 
            # token with ": " for nice printing
            msg = msg.replace(separator_token, ": ")
        # iterate over all connected sockets
        for client_socket in client_sockets:
            # and send the message
            client_socket.send(msg.encode())

while True:
    # we keep listening for new connections all the time
    client_socket, client_address = s.accept()
    print(f"[+] {client_address} connected.")
    # add the new connected client to connected sockets
    client_sockets.add(client_socket)
    # start a new thread that listens for each client's messages
    t = Thread(target=listen_for_client, args=(client_socket,))
    # make the thread daemon so it ends whenever the main thread ends
    t.daemon = True
    # start the thread
    t.start()
    
 import socket
import random
from threading import Thread
from datetime import datetime
from colorama import Fore, init, Back

# init colors
init()

# set the available colors
colors = [Fore.BLUE, Fore.CYAN, Fore.GREEN, Fore.LIGHTBLACK_EX, 
    Fore.LIGHTBLUE_EX, Fore.LIGHTCYAN_EX, Fore.LIGHTGREEN_EX, 
    Fore.LIGHTMAGENTA_EX, Fore.LIGHTRED_EX, Fore.LIGHTWHITE_EX, 
    Fore.LIGHTYELLOW_EX, Fore.MAGENTA, Fore.RED, Fore.WHITE, Fore.YELLOW
]

# choose a random color for the client
client_color = random.choice(colors)

# server's IP address
# if the server is not on this machine, 
# put the private (network) IP address (e.g 192.168.1.2)
SERVER_HOST = "127.0.0.1"
SERVER_PORT = 5002 # server's port
separator_token = "<SEP>" # we will use this to separate the client name & message

# initialize TCP socket
s = socket.socket()
print(f"[*] Connecting to {SERVER_HOST}:{SERVER_PORT}...")
# connect to the server
s.connect((SERVER_HOST, SERVER_PORT))
print("[+] Connected.")

def listen_for_messages():
    while True:
        message = s.recv(1024).decode()
        print("\n" + message)

# make a thread that listens for messages to this client & print them
t = Thread(target=listen_for_messages)
# make the thread daemon so it ends whenever the main thread ends
t.daemon = True
# start the thread
t.start()

while True:
    # input message we want to send to the server
    to_send =  input()
    # a way to exit the program
    if to_send.lower() == 'q':
        break
    # add the datetime, name & the color of the sender
    date_now = datetime.now().strftime('%Y-%m-%d %H:%M:%S') 
    to_send = f"{client_color}[{date_now}] {name}{separator_token}{to_send}{Fore.RESET}"
    # finally, send the message
    s.send(to_send.encode())

# close the socket
s.close()

Popularity 10/10 Helpfulness 3/10 Language python

Source: Grepper

Tags: chat

Link to this answer
Share Copy Link

Contributed on May 06 2022

SECRET MYSTERY

0 Answers Avg Quality 2/10

chat application in python

Comment

With this tutorial I made one
https://www.youtube.com/watch?v=_fx7FQ3SP0U&list=PLzMcBGfZo4-kR7Rh-7JCVDN8lm3Utumvq

I could pass you my program but the anotations are in Spanish. Contact me if you want it.

Popularity 10/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: chat

Link to this answer
Share Copy Link

Contributed on Jun 10 2022

Iago I.

0 Answers Avg Quality 2/10

Python chat application

Contents

More Related Answers

Python chat application

Closely Related Answers

python chat

chat application in python

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.