it is like container widget that contains horizontal or vertical panes the panedwindow widget acts like container widget which contains one or more child widgets (panesarranged horizontally or vertically the child panes can be resized by the userby moving the separator lines known as sashes by using the mouse each pane contains only one widget the panedwindow is used to implement the different layouts in the python applications the syntax to use the panedwindow is given below =panedwindow(master,options code snippet from tkinter import def add() int( get() int( get()leftdata str( +bleft insert( ,leftdataw panedwindow( pack(fill bothexpand left entry( bd add(leftw panedwindow( orient verticalw add( entry( entry( add( add( bottom button( text "add"command addw add(bottommainloop(outputfig panedwindow