<prompt> Create a GUI which divides a window into four panels, left to right and up to down.  <response>: To create a GUI in Python, you can use the Tkinter library, which comes pre-installed with Python. Below is an example code that creates a window that is divided into four panels:pythonimport tkinter as tkroot tk.Tkroot.geometry400x400frame1 tk.Frameroot, bgred, bd3frame1.placerelx0.5, rely0.25, relwidth0.5, relheight0.5, anchorcenterframe2 tk.Frameroot, bgblue, bd3frame2.placerelx0.5, rely0.75, relwidth0.5, relheight0.5, anchorcenterframe3 tk.Frameroot, bggreen, bd3frame3.placerelx0.25, rely0.25, relwidth0.5, relheight0.5, anchorcenterframe4 tk.Frameroot, bgyellow, bd3frame4.placerelx0.25, rely0.75, relwidth0.5, relheight0.5, anchorcenterroot.mainloopIn the above code, we first import the Tkinter library and create the main window by calling the Tk class constructor. The geometry method is used to set the size of the window. Then, we create four frames which will represent the four panels of the window. Each frame is given a background color for distinction, and its size and position are set using the place method, which uses relative positioning. The relx and rely attributes specify the horizontal and vertical position of the frame, respectively, and the relwidth and relheight attributes specify the width and height of the frame, respectively.Finally, we start the main event loop of the GUI by calling the mainloop method on the main window object. 