Re: [Visualpython-users] borked installation - recovery?

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

I haven't yet figured out why, but the problem arises only if you set 
"value" in the slider constructor. Remove it from the constructor, and 
then after creating the slider execute this:

s1.value = 0.5

Bruce Sherwood

Lenore Horner wrote:
> I was being stupid and thought I could pull some of the color-sliders  
> tricks into the regular controls package and have them for everything  
> instead of having to copy and paste revised definitions all the time.   
> After all, I could always re-install the controls.py and controls.pyc  
> files if I mangled them irrepairably.  Maybe not.
> 
> I opened the package and just copied those to files back to the visual  
> folder in site packages - replacing my mangled ones.  No dice.
> 
> I've wiped out Vpython and MacPython and reinstalled both.  Still no  
> good.  Controls complains about a property not existing that I can  
> plainly see in the code is defined.
> 
> Any suggestions for where the wrong definition continues to lurk?
> 
> Here's the error message.
> 
>      s1 = slider(pos=(-50,0,0), width=2, length=10, min=0, max=pi/4,  
> value = 0.5, action=lambda: setangle(s1))
>    File "/Library/Frameworks/Python.framework/Versions/2.6/lib/ 
> python2.6/site-packages/visual/controls.py", line 245, in __init__
>      ctrl.__init__(self, args)
>    File "/Library/Frameworks/Python.framework/Versions/2.6/lib/ 
> python2.6/site-packages/visual/controls.py", line 85, in __init__
>      self.value = args['value']
>    File "/Library/Frameworks/Python.framework/Versions/2.6/lib/ 
> python2.6/site-packages/visual/controls.py", line 283, in setvalue
>      self.update(self.pos+self.axis*val*self.length/(self.max-self.min))
> AttributeError: 'slider' object has no attribute 'axis'
> 
> I've tried it both with and without an explicit axis in the slider  
> call to no avail.
> 
> TIA,
> Lenore
> 
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