Re: [Visualpython-users] Beta 4.beta26 bugs

[Bruce S. <Bru...@nc...>]

These bugs are gone from the Visual 5.0 about to be released. More below.

Anders Petersson wrote:
> 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)

This works in Visual 5.0.
> 
> 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]

This works in Visual 5.0.
> 
> 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)

This doesn't work but never has. Doesn't work in Visual 3 nor in Visual 5.0.
> 
>     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?

What are the "curious effects"? I too am puzzled about this syntax.
> 
> 
> /Anders Petersson
> 
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