Sleep and While True in Tkinter

For example, there is a code:

   Def   tk_sleep  (): n statatus_send = tk () n n. Status_Send.geometry ( '400x340' ) n tx_1 = text (status_send, font = ( '' times' ,  12 ), width =  62 , height =  15 , wrap = word) nor n. tx_1.pack () n  for  i  in   range  ( 10 ): n tx_1.insert ( 1.0 ,  'Hello world' ) n TX_1.UPDATE () N Sleep ( 5 ) n   n 
 At the same time, the whole window with widget freezes. How to avoid this? 
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