Various lengths, widths, and other dimensions of widgets can be described in many different units.
If you set a dimension to an integer, it is assumed to be in pixels.
You can specify units by setting a dimension to a string containing a number followed by.
|Sr.No.||Character & Description|
Printer's points (about 1/72")
Tkinter expresses a length as an integer number of pixels. Here is the list of common length options −
borderwidth − Width of the border which gives a three-dimensional look to the widget.
highlightthickness − Width of the highlight rectangle when the widget has focus.
padX padY − Extra space the widget requests from its layout manager beyond the minimum the widget needs to display its contents in the x and y directions.
selectborderwidth − Width of the three-dimentional border around selected items of the widget.
wraplength − Maximum line length for widgets that perform word wrapping.
height − Desired height of the widget; must be greater than or equal to 1.
underline − Index of the character to underline in the widget's text (0 is the first character, 1 the second one, and so on).
width − Desired width of the widget.