[Pyode-user] pyode tutorial one crashes on mac 10.6.7

[john j. <jja...@al...>]

I just installed  ode 0.11.1   and    py26-ode 1.2.0  via macports 
and on my macbook running OS X10.6.7 and when I try the first
tutorial it crashes. The first data point comes out OK, but the rest
are blown up (until it crashes)  - it looks like a divide by zero. 
Anyone have any thoughts?

Now I get these messages:

after line:  M.setSphere(2500.0, 0.05):

ODE Message 2: mass must be > 0 in dMassCheck() File mass.cpp Line 49
0.00sec: pos=( 0.000,  0.000,  2.000)  vel=( 0.000,  0.000,  0.000)

and then when in the loop, right when it crashes, I get the message:

ODE INTERNAL ERROR 1: assertion "bNormalizationResult" failed in _dNormalize4() 
[../../include/ode/odemath.h]