[Visualpython-users] Graph test

[Poul R. <Pou...@sk...>]

I just tried the following small test program, taken from the VPython
documentation (except that I've added the two first lines):

import sys
sys.path.append('e:/python/Lib/site-packages/visual')

from visual.graph import * # import graphing features
 
funct1 = gcurve(color=color.cyan) # a connected curve object
 
for x in arange(0., 8.1, 0.1): # x goes from 0 to 8

    funct1.plot(pos=(x,5.*cos(2.*x)*exp(-0.2*x))) # plot

I get the following error message:

Traceback (most recent call last):
  File "E:/python/Lib/site-packages/visual/examples/graphtest1.py", line
4, in <module>
    from visual.graph import * # import graphing features
  File "E:\python\visual\__init__.py", line 21, in <module>
    copy_reg.pickle(cvisual.VectorType, lambda v: (vector, tuple(v)),
vector)
AttributeError: 'module' object has no attribute 'VectorType'

Is this a path problem or what can I do to make it work?
I use the most recent (beta) version of VPyton.

Yours
Poul Riis