floating point - Can a variable be used in Python to define decimal places

Question

I'm familiar with the convention of using %.2f to set two decimal places for a float but is it in any way possible to change the number to a variable so that the user can state the number of decimal places displayed?

Answer 1

.format is a nicer, more readable way to handle variable formatting:

'{:.{prec}f}'.format(26.034, prec=3)