visualpython-users

[Visualpython-users] Problem resolved

[Bruce S. <ba...@an...>]

Dave Scherer discovered the change in Python 2.1 that made Visual fail. It 
is no longer legal to do the direct comparison "numeric_array == None". 
Instead, you now have to do essentially "value.is(Nothing())" instead of 
"value == Nothing()". We'll make these changes and then be able to move up 
to Python 2.1

Bruce Sherwood

[Visualpython-users] hasattr and visual

[Arne K. <arn...@pp...>]

I have the following problem  with hasattr() on visual object:

when I execute this simple code:
-----------------------------------------------
#file Vtest.py
from visual import *

thecone = cone(pos=(-3,-2,-2),axis = (0,3,0),radius=2.5,
color=color.yellow)

thecone.attr_exists = 'test'
print 'yes', hasattr(thecone,'attr_exists')
print  'no', hasattr(thecone,'attr_no_exists')
-----------------------------------------------

it returns:
------------------------------------------------
arne@requin:~/python/Vpython > python Vtest.py
Visual-2001-02-20
yes 1
segmentation fault
---------------------------------------------------
I have installed Vpython from the cvs on Linux 2.2.18 (suse
7.1 distribution) under python2.0. 


-- 
Arne Keller
Laboratoire de Photophysique Moleculaire du CNRS, Bat. 213.
Universite de Paris-Sud, 91405 Orsay Cedex, France.
tel.: (33) 1 69 15 82 83 -- fax. : (33) 1 69 15 67 77