[Visualpython-users] range

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

For technical reasons I was unable to respond to this earlier.

Executing "range = 100" means that you've changed the interpretation of
"range" to be a label for the integer constant "100", so that when you
then try to loop over range the original interpretation (make a list) has
been lost.

However, use of "range" in a list of function arguments doesn't redefine
its meaning outside that domain.

Bruce Sherwood

--------------------------

I have been studying Vpython modules Text and Controls and I 
am a little confused by the use of  'range'. The __init__ parameter 
list looks like this:

 > > def __init__(self, x=0, y=0, width=300, height=320,
 > > range=100,title=None, foreground=None, background=None):
 > >
 > > Now RANGE is of course a keyword, but it is being used here as a
 > > variable.
 > >
 > > Using IDLE 1.2.2 produces the following error.
 > >
 > > range=100
 > > ......
 > > for a in range(1,10):<br>
 > > .....
 > > TypeError: 'int' object is not callable<br>
 > >
 > > Am I missing something?