tkinter widget span multiple colums
checkbutton.grid(columnspan=2, sticky=W)
Source: effbot.org
python grid
example1 = Label(root, text="Top left column") example1.grid(row=0, column=0) #Or example2 = Label(root, text="Middle right colum") .grid(row=1, column=1) #ColumnSpan example3 = Label(root, text="Bottom Row") example3.grid(row=2, columnspan=2)
columnspan tkinter
columnspan − How many columns widgetoccupies; default 1. ipadx, ipady − How many pixels to pad widget, horizontally and vertically, inside widget's border