PyQT QwtScaleDiv constructor does not accept float min and max

Hi, if i do

Code:

ticks = [0,5,10]
div = QwtScaleDiv(float(ticks[0]), float(ticks[len(ticks)-1]), ticks)

i get the following error:

Code:

div = QwtScaleDiv(x,y, ticks)
TypeError: QwtScaleDiv(): arguments did not match any overloaded call:
  overload 1: too many arguments
  overload 2: argument 1 has unexpected type 'float'
  overload 3: not enough arguments
  overload 4: argument 1 has unexpected type 'float'

same happens if I pass int values for min, max. but if i do:

Code:

div = QwtScaleDiv()
div.setInterval(ticks[0], ticks[len(ticks)-1])

there is no problem. is this a bug (maybe in SIP?)?
I'm on ubuntu 10.10 (amd 64) using the repo src