SpinButton.newWithRange

This is a convenience constructor that allows creation of a numeric #GtkSpinButton without manually creating an adjustment. The value is initially set to the minimum value and a page increment of 10 * step is the default. The precision of the spin button is equivalent to the precision of step.

Note that the way in which the precision is derived works best if step is a power of ten. If the resulting precision is not suitable for your needs, use [gtk.spin_button.SpinButton.setDigits] to correct it.