Tkinter .after method freezing window?

Question

I have a simple chat client that I was attempting to get working with Tkinter as the interface. My problem is that when running the mainloop with

Answer 1

I learned about using select to make system calls to check if a socket file is ready to be read.

How to set timeout on python's socket recv method?

class Client(Frame):

    def __init__(self, **kwargs):
        self.client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.client.connect(("host", port))
        self.client.setblocking(0)
        Frame.__init__(self, Tk())
        self.pack()

        self.lb = Listbox(self, width=100, height=30)
        self.lb.pack()

        self.show_data = self.lb.after(1000, self.chat_handle)

        self.entry = Entry(self)
        self.entry.bind('', self.input_handle)
        self.entry.pack(side=BOTTOM, fill=X)

    def input_handle(self, event):
        msg = self.entry.get()
        self.entry.delete(0, 'end')
        new_msg = 'privmsg %s :' % self.channel + msg + '\r\n'
        self.client.sendall(new_msg)
        self.lb.insert(END, self.nick + ' | ' + msg)

    def chat_handle(self):
        socket_data = select.select([self.client], [], [], 0.3) # set timeout on last arg
        if socket_data[0]:
            try:
                self.data = self.client.recvfrom(1024)
            except socket.error:
                self.lb.insert(END, "Bad Connection!")
                return
            if self.data and len(self.data[0]) > 0:
                self.lb.insert(END, self.data[0])
            elif self.data and len(self.data[0]) == 0:
                self.lb.insert(END, "Connection Dropped!")
                return
            self.show_data = self.lb.after(1000, self.chat_hand