Reference | textmetrics()
Syntax
textmetrics(txt, width=None)
Description Returns what would be the width and height of a text block drawn with the text() command, in the current font(), fontsize() and lineheight(). The first parameter sets the text string to measure, the second parameter sets the width of a line of text in block.
Returns a tuple containing the width and height of the text block
Example
font("Courier New") w, h = textmetrics("hello", 30) print w print h