[Tkinter-discuss] pybwidget newbie questions re: Tree

[Arthur C]

Figured out my problem.  There is a bug in the
pybwidget Tree::nodes() member.

The correct code should be:

def nodes(self, node, *args):
   return self.tk.call(self._w, "nodes", node, *args)

The "node" argument was not being passed into the call
function.  BTW, I did define a constant ROOT

ROOT='root'

and it works as expected.  I don't follow your comment
that is different than NORMAL.  In Tcl, you'd do:

Tree .tree
.tree insert end root bob -text "Bob"
.tree nodes root

In Python, I'm doing:

ROOT='root'

tree = Tree( ... )
tree.insert( END, ROOT, 'bob', text = 'Bob' )
tree.nodes( ROOT )

Looks like I'll modify the pybwidget package to fit my
needs.  I'll submit any changes to the author for
consideration.

A

--- Stewart Midwinter <stewart.midwinter at gmail.com>
wrote: 
> Arthur:
> 
> you can't extend the idea of NORMAL to ROOT.  NORMAL
> is a variable
> with content 'normal', but root is an object.  I'm
> guessing that your
> tree node deletion fails because you have root in
> quotes - it's not a
> string.   But I haven't worked with that module yet.
> 
> The other thing might be to look in pybwidget.py,
> since there are some
> clues in there. And lastly, since bwidget are TCL
> widgets, you may
> want to look into the tcl code.  I know, it's kind
> of strange if you
> are used to python...
> 
> After you get it all working, please consider
> visiting the wiki at
> http://tkinter.unpy.net/wiki/ and add some text and
> a screen print for
> the bwidget tree widget.
> 
> thanks
> S
> 
> 
> On Tue, 21 Dec 2004 16:57:07 -0500 (EST), Arthur C
> <arthurc at rogers.com> wrote:
> > - I've gotten used to Tkinter's definition of
> > constants such as NORMAL (which is merely a string
> > 'normal') for certain argument values.  When
> adding
> > nodes off the root to a Tree, the Tcl code uses
> the
> > name root.  I was expecting to do something like:
> > 
> >  t = Tree( ... )
> >  t.insert( END, ROOT, text = 'Something' )
> > 
> > Okay, so not ROOT constant exists.  So, what do I
> use?
> >  I'm guess 'root'.  Changed the code to:
> > 
> >  t.insert( END, 'root', text = 'Something' )
> > 
> > Now, I want to delete all the nodes in the tree. 
> So I
> > want to do something like:
> > 
> >  t.delete( t.nodes( 'root' ) )
> > 
> > However, doing so gives the following error:
> > 
> > TclError: wrong # args: should be "Tree::nodes
> path
> > node ?first? ?last?"
> > 
> > Any idea what the issue is?  FYI, I'm using
> > pybwidget-0.1.1_1.7.0
> > 
> > Thanks for any clues offered.
> > 
> > Regards,
> > Arthur
> > _______________________________________________
> > Tkinter-discuss mailing list
> > Tkinter-discuss at python.org
> >
>
http://mail.python.org/mailman/listinfo/tkinter-discuss
> > 
> 
> 
> -- 
> Stewart Midwinter
> stewart at midwinter.ca
> stewart.midwinter at gmail.com
>