AttributeError: 'ReedsSheppPlanner' object has no attribute 'curvature'

[dblanding]

I get the above error when running code from section 5.6.2 within an IPython session (after running rvctool).

qs = (0, 0, pi/2);
qg = (1, 0, pi/2);
rs = ReedsSheppPlanner(curvature=1)
path, status = rs.query(qs, qg)

I am using Ubuntu 22.04 The Dubins Planner works OK and I get the 3D interactive plot. The odd thing is that the Reeds-Shepp planner worked once and now it won't work again. I always get this error !?!

error.txt