What does the +0+0 in geometry() mean in tkinter?

width x height + x position + y position, positions relative to the top left corner of the screen in pixels

Edit:

Here's a brief summary of the function from tcl.tk, written up much more concisely than I could hope to achieve.

root.geometry("%dx%d+0+0" % (w, h))

its just where do you want the pixel from, setting the top and left corner of the screen

CodeHunter