Is IPAD-X/Y and PAD-X/Y different in tkinter (python)?

ipadx, ipady − How many pixels to pad widget, horizontally and vertically, inside widget's borders. padx, pady − How many pixels to pad widget, horizontally and vertically, outside v's borders

Example: Here is ipadx. You can see the that the width has increased. It means that 20 pixels are there to the right and left of the Label. 20 pixels are padded horizontally. Similarly it is for ipady except it is vertical.

from tkinter import *

root=Tk()
Label(root,bg='light grey',text="Hello").grid(row=0,column=0,ipadx=20)
root.mainloop()

And here it is in case of padx. The widget is placed 20 pixels to the side, horizontally. Same is the case for pady except it is vertical.

from tkinter import *

root=Tk()
Label(root,bg='light grey',text="Hello").grid(row=0,column=0,padx=20)
root.mainloop()