curves and how to

is there any good tut or threads onho wto use use and work with curves

bezier or nurbs type in python
and i did search the web and python but very little available to learn how to!

like i tried to follow this old script for spiral

curveob1=Create(0)
cu=Create(0)

SCENE = Scene.getCurrent()
cu = Curve.New(‘Curv1’) # create new curve data
cu.setFlag(1)
curveob1=Object.New(‘Curve’)
curveob1.link(cu)
SCENE.link(curveob1)
#cu[0].type=0

but always tell me that it’s a nurb not a curve bezier

so any good tut would be appreciated a lot to lean more about theses curves

any help appreciated
Thanks

there’s useful examples in the official doc :
http://www.blender.org/documentation/249PythonDoc/Curve-module.html

yup seen this and sorry but totaly useless

i nedd seom basci example with diferetn approch to do it with sinple basic bezier and nurbs curves and may a little with surface tog et a good how to !

Thanks