On Win 98, specifying pos as a tuple instead of a list in the constuctor for curve or convex produces an error message.
a=curve(pos=(0,0,0))
TypeError: pos must be an (N x 3) array
However, on Win2000, this produces a crash:
Program Error. pythonw.exe has generated errors and will be closed by Windows. The error log says Exception number c0000005 (access violation).
(I don't know what an access violation is, but this happens even if one logs on as administrator.)
Not a problem on Win2000 Server.
Have now tried on several different Win2000 machines, and this seems not to be a problem. Must be that some change in Visual made this go away.