[Tutor] Socket connection refused

[Nick Lunt]

Hi there,

I'm also new at python but I copied/pasted your source code and it ran
fine after I'd sorted out the formatting, but I suspect that was because
of my email client.

Anyway it runs on linux ok, the only issue I found was that when
connecting, then clicking on the OK button on the 'Hello World' message
I get the following TkDialog up "Can't connect to the server 127.0.0.1
EISCONN"

Sorry I can't be of anymore help.

Cheers
Nick.


On Mon, 23 Feb 2004 19:09:13 GMT  "Vianus le Fus "
<deadviannou at caramail.com> wrote:

> Hello,
> I'm a newbie to python so please don't be too hard with me :)
> I'm encountering problems using socket connections in my programs. My
> goal is to create a small chat program so I begin with the beginning :
> two really small apps, one for the server and one for the client. The
> server is here to listen to one port and to resend its own data to the
> client that's connected to the port.
> 
> I have found two ways to test this : I compile the server with py2exe
> and launch it, then I can run the client either running the module
> under IDLE or compiling it with py2exe. And there's my problem : it
> works under IDLE (connection is set and the client receives its own
> data) but connection fails when using the exe client.... it says
> "error 10061 : Connection refused". I don't have any firewall nor
> other running programs that could block the socket, I really don't
> understand what's the difference using py2exe or not !!
> 
> Please does someone know why the first method works and not the other
> ?
> 
> -----------------------------------------------------
> Serveur.py
> -----------------------------------------------------
> import socket
> 
> HOST = '127.0.0.1'
> PORT = 50007
> 
> s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
> s.bind((HOST, PORT))
> s.listen(1)
> conn, addr = s.accept()
> print 'Connected by', addr
> while 1:
>     data = conn.recv(1024)
>     if not data: break
>     conn.send(data)
> conn.close()
> 
> 
> 
> -----------------------------------------------------
> Client.py
> -----------------------------------------------------
> import errno
> import socket
> from Tkinter import *
> import tkMessageBox
> 
> class Application(Frame):
>     def __init__(self, master=None):
>         Frame.__init__(self, master)
>         
>         self.s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>         self.connected = 0
>         self.data = ''
>         
>         self.pack()
>         self.createWidgets()
> 
>         
>     def createWidgets(self):
>         self.btn_quit = Button(self)
>         self.btn_quit["text"] = "QUIT"
>         self.btn_quit["fg"]   = "red"
>         self.btn_quit["command"] =  self.end
> 
>         self.btn_quit.pack({"side": "left"})
> 
>         self.btn_connect = Button(self)
>         self.btn_connect["text"] = "Connect",
>         self.btn_connect["command"] = self.connect
> 
>         self.btn_connect.pack({"side": "right"})
> 
> 
>     def connect(self) :
>         try:
>             self.s.connect(('127.0.0.1', 50007))
>             self.connected = 1
>             
>         except socket.error, msg:
>             tkMessageBox.showinfo(title='Connexion error',
>             message='Can\'t connect \
> to the server 127.0.0.1' + '\n' + str(errno.errorcode[msg[0]]))
> 
>         if self.connected == 1 :
>             self.s.send('Hello, world')
>             self.data = self.s.recv(1024)
>             print 'Received', str(self.data)
>             tkMessageBox.showinfo(title='Data received !!',
>             message=str(self.data))
> 
> 
>     def end(self) :
>         self.s.close()
>         self.quit()
> 
> 
> # MAIN
> app = Application()
> app.mainloop()
> -----------------------------------------------------
> 
> Plus simple, plus fiable, plus rapide : découvrez le nouveau Caramail
> - http://www.caramail.lycos.fr
> 
>