[PyCrust] __setattr__ no longer strict

[Kevin A. <al...@se...>]

The attribute checks used to be strict, but now they're not.

>>> comp.button1.bob = "hello"

shouldn't be possible, since there is no 'bob' attribute. I found this while
trying to decide how I was going to deal with attributes that can only be
set at initialization. What I came up with was to go ahead and define a _get
and _set but have the _set method raise an exception. As an example, I
changed StaticLine and checked in widget.py.

class StaticLine( Widget ) :
    ...
    def _setLayout( self, aString ) :
        raise NotImplementedError

    def _getLayout( self ) :
        return self._layout

So, then I tried:

>>> comp.staticlineH.layout
'horizontal'
>>> comp.staticlineH.layout = 'bob'

The layout = 'bob' should throw an exception, but it doesn't for some
reason?! I tried this standalone in proof.py and in the shell and got the
same results. I added a _setName to the Widget class that does the same
NotImplementedError.

Maybe your original was better before we were trying to get the
self._magicGetPrefix to work?!

On a lighter note, it is sort of fun to define toolTips on the fly.

comp.button1.toolTip = 'Hello World'

And I sure do like not have _ and __ show up anymore.

ka