Messenger

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
s.bind(('0.0.0.0',11719))
while 1:
    message = s.recv(128)
    print (message)


import socket

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
while 1:
    sock.sendto('broadcast!',('255.255.255.255',11719))


from Tkinter import *

tk=Tk()
tk.title('MegaChat')
tk.geometry('400x300')
tk.mainloop()

from Tkinter import *

tk=Tk()
tk.title('MegaChat')
tk.geometry('400x300')
log = Text(tk)
nick = Entry(tk)
msg = Entry(tk)
msg.pack(side='bottom', fill='x', expand='true')
nick.pack(side='bottom', fill='x', expand='true')
log.pack(side='top', fill='both',expand='true')
tk.mainloop()

from Tkinter import *

tk=Tk()

text=StringVar()
name=StringVar()
name.set('HabrUser')
text.set('')
tk.title('MegaChat')
tk.geometry('400x300')

log = Text(tk)
nick = Entry(tk, textvariable=name)
msg = Entry(tk, textvariable=text)
msg.pack(side='bottom', fill='x', expand='true')
nick.pack(side='bottom', fill='x', expand='true')
log.pack(side='top', fill='both',expand='true')

def loopproc():
    print ('Hello '+ name.get() + '!')
    tk.after(1000,loopproc)

tk.after(1000,loopproc)
tk.mainloop()

from Tkinter import *

tk=Tk()

text=StringVar()
name=StringVar()
name.set('HabrUser')
text.set('')
tk.title('MegaChat')
tk.geometry('400x300')

log = Text(tk)
nick = Entry(tk, textvariable=name)
msg = Entry(tk, textvariable=text)
msg.pack(side='bottom', fill='x', expand='true')
nick.pack(side='bottom', fill='x', expand='true')
log.pack(side='top', fill='both',expand='true')

def loopproc():
    log.insert (END,'Hello '+ name.get() + '!\n')
    tk.after(1000,loopproc)

def sendproc(event):
    log.insert (END,name.get()+':'+text.get()+'\n')
    text.set('')

msg.bind('<Return>',sendproc)
tk.after(1000,loopproc)
tk.mainloop()

import socket
from Tkinter import *

tk=Tk()

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
s.bind(('0.0.0.0',11719))

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST,1)

text=StringVar()
name=StringVar()
name.set('HabrUser')
text.set('')
tk.title('MegaChat')
tk.geometry('400x300')

log = Text(tk)
nick = Entry(tk, textvariable=name)
msg = Entry(tk, textvariable=text)
msg.pack(side='bottom', fill='x', expand='true')
nick.pack(side='bottom', fill='x', expand='true')
log.pack(side='top', fill='both',expand='true')

def loopproc():
    message = s.recv(128)
    log.insert(END,message)
    tk.after(1,loopproc)

def sendproc(event):
    sock.sendto (name.get()+':'+text.get(),('255.255.255.255',11719))
    text.set('')

msg.bind('<Return>',sendproc)
tk.after(1,loopproc)
tk.mainloop()

import socket
from Tkinter import *

tk=Tk()

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
s.bind(('0.0.0.0',11719))

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST,1)

text=StringVar()
name=StringVar()
name.set('HabrUser')
text.set('')
tk.title('MegaChat')
tk.geometry('400x300')

log = Text(tk)
nick = Entry(tk, textvariable=name)
msg = Entry(tk, textvariable=text)
msg.pack(side='bottom', fill='x', expand='true')
nick.pack(side='bottom', fill='x', expand='true')
log.pack(side='top', fill='both',expand='true')

def loopproc():
    s.setblocking(False)
    try:
        message = s.recv(128)
        log.insert(END,message+'\n')
    except:
        tk.after(1,loopproc)
        return
    tk.after(1,loopproc)
    return

def sendproc(event):
    sock.sendto (name.get()+':'+text.get(),('255.255.255.255',11719))
    text.set('')

msg.bind('<Return>',sendproc)
tk.after(1,loopproc)
tk.mainloop()

# -*- coding: utf-8 -*-

import socket
from Tkinter import *

#Решение проблемы Кириллицы
reload(sys)
sys.setdefaultencoding('utf-8')
#-----------------------------

tk=Tk()

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
s.bind(('0.0.0.0',11719))

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST,1)

text=StringVar()
name=StringVar()
name.set('HabrUser')
text.set('')
tk.title('MegaChat')
tk.geometry('400x300')

log = Text(tk)
nick = Entry(tk, textvariable=name)
msg = Entry(tk, textvariable=text)
msg.pack(side='bottom', fill='x', expand='true')
nick.pack(side='bottom', fill='x', expand='true')
log.pack(side='top', fill='both',expand='true')

def loopproc():
    log.see(END)
    s.setblocking(False)
    try:
        message = s.recv(128)
        log.insert(END,message+'\n')
    except:
        tk.after(1,loopproc)
        return
    tk.after(1,loopproc)
    return

def sendproc(event):
    sock.sendto (name.get()+':'+text.get(),('255.255.255.255',11719))
    text.set('')

msg.bind('<Return>',sendproc)

msg.focus_set()

tk.after(1,loopproc)
tk.mainloop()