import tkinter
import threading
import queue
import time

# Data Generator which will generate Data
def GenerateData(q):
    for i in range(1000000):
        #print "Generating Some Data, Iteration %s" %(i)
        time.sleep(0.001)
        q.put("%s" % i)

# Queue which will be used for storing Data
q = queue.Queue()

def QueueHandler(widinst, q):
    linecount = 0
    print("Running")
    while True:
        if not q.empty():
            str = q.get()
            linecount = linecount + 1
            widinst.configure(state="normal")
            str = str + "\n"
            widinst.insert("end", str)
            if linecount > 100:
                widinst.delete('1.0', 'end')
                linecount = 0
            widinst.see('end')
            widinst.configure(state="disabled")

# Create a thread and run GUI & QueueHadnler in it
tk = tkinter.Tk()
scrollbar = tkinter.Scrollbar(tk)
scrollbar.pack(side='right', fill='y' )
text_wid = tkinter.Text(tk,yscrollcommand=scrollbar.set)
text_wid.pack()
t1 = threading.Thread(target=GenerateData, args=(q,))
t2 = threading.Thread(target=QueueHandler, args=(text_wid,q))
t2.start()
t1.start()

tk.mainloop()