[Visualpython-users] Beta 4.beta26 bugs

[Anders P. <an...@gm...>]

David's mail had me remember the problems I've encountered myself.
Here's the list of issues in beta 4.beta26.
Please don't take it as critique, I really like the new features! Just
some small things to sort out.


Converting from a color to vector no longer works:
vector(sphere().color)

Traceback (most recent call last):
  File "<pyshell#25>", line 1, in <module>
    vector(a.color)
ArgumentError: Python argument types in
    vector.__init__(vector, tuple)
did not match C++ signature:
    __init__(_object*, cvisual::vector)
    __init__(_object*)
    __init__(_object*, double)
    __init__(_object*, double, double)
    __init__(_object*, double, double, double)
(I did this to interpolate transitions between two colors)


It is illegal to slice a vector?!

>>> from visual import vector
>>> a = vector(1,2,3)
>>> a[:2]

Traceback (most recent call last):
  File "<pyshell#14>", line 1, in <module>
    a[:2]
ArgumentError: Python argument types in
    vector.__getitem__(vector, slice)
did not match C++ signature:
    __getitem__(cvisual::vector {lvalue}, int)



Doesn't work:
pickle.dump(scene.forward, file)

    pickle.dump(vector(scene.forward), output)
  File "C:\Python25\lib\pickle.py", line 1362, in dump
    Pickler(file, protocol).dump(obj)
  File "C:\Python25\lib\pickle.py", line 224, in dump
    self.save(obj)
  File "C:\Python25\lib\pickle.py", line 331, in save
    self.save_reduce(obj=obj, *rv)
  File "C:\Python25\lib\pickle.py", line 401, in save_reduce
    save(args)
  File "C:\Python25\lib\pickle.py", line 286, in save
    f(self, obj) # Call unbound method with explicit self
  File "C:\Python25\lib\pickle.py", line 562, in save_tuple
    save(element)
  File "C:\Python25\lib\pickle.py", line 295, in save
    self.save_global(obj)
  File "C:\Python25\lib\pickle.py", line 748, in save_global
    (obj, module, name))
PicklingError: Can't pickle <type 'Boost.Python.instance'>: it's not
found as Boost.Python.instance



I accidently did
box.height = 3
instead of object.box.height = 3
with very curious effects. Should it be possible to set dimensions for
all objects in this way?


/Anders Petersson