tkinter python button run in background command

I'm mucking about with Tkinter and Python. I have a basic gui with a couple of buttons on, one button goes away and does something that takes some amount of time, which is variable. The problem is when I hit this button the whole of my gui locks up/ doesnt show correctly - I guess because its trying to do these things that take some amount of time and its blocking the gui.

I have looked into threading and queues, but I can't figure it out. I think I need to fire off my lookup method on a thread and then queue the results as they come back and update the listbox as there coming back?

I'm on windows if this makes a difference to the way I use threads.

Kind Regards

david

Basic code below.

class Search:

        def __init__(self, master):

            self.seeds = []

            frame = Frame(master, width=700, height=500)
            frame.pack_propagate(0)
            frame.pack(expand=YES, fill=BOTH)

            #
            # Search results
            #
            l2 = Label(frame, text="results")
            l2.pack(anchor=W)
            self.resultfield = Listbox(frame, selectmode=BROWSE)
            self.resultfield.grid(row=3, column=1, sticky=N+W+S+E, columnspan=3)
            self.resultfield.pack(fill=BOTH)

            frame1 = Frame(frame)
            frame1.pack()


            # Button to action the search
            self.getSearchbut = Button(frame1, text="Do Search", command=self.getSearch)
            self.getSearchbut.grid(row=1, column=2)
            self.getSearchbut.pack()

        def getSearch(self):


            sa = SearchApi(self.seeds)

            results = sa.lookup(self)


            for result in results:
                self.resultfield.insert(END, user)

        def putCSV(self):
            print "put the csv files"

class SearchApi: 

        def __init__(self, seeds):
            self.seeds = seeds

        def lookup(self):
            results = []
                # I do something here that takes a while
                return results




if __name__ == "__main__":

    root = Tk()
    root.title("Search")

    app = Search(root)

    root.mainloop()

ansaurus

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tkinter python button run in background command

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