Re: [Visualpython-users] using arrows in a class

[Jim V. <Jim...@no...>]

To further elaborate on Jonathan's request, for example:
s = pp._test
does not create an instance of the _test class, but
s = pp._test() # note parentheses
does -- at least as your example defines this class.

Jonathan Brandmeyer wrote:

> On Tue, 2003-09-16 at 17:57, Richard Chapman wrote:
> > hi
> >
> > okay i have a file called pp.py that has a class def in it
> >
> > class _test:
> >
> >       def __init__(self):
> >               self.arrow1 = arrow(...
> >               self.arrow2 = arrow(...
> >
> >       def move(self, step):
> >               self.arrow1.pos.x = self.arrow1.pos.x + step
> >               self.arrow2.pos.x = self.arrow2.pos.x + step
> >
> >
> > now back in another file in the same directory i have
> >
> > import pp
> >
> > #now i create instances of the class like this
> > s1 = pp._test
> > s2 = pp._test
> >
> >
> > #now i have a while loop
> > while 1==1:
> >       s1.move(step=-2)
> >       s2.move(step=2)
> >
> > now the problem i am having is that it is only showing s2's arrows, throwing
> > in some print statements in between sections of code sometimes i can get it
> > so that s1 arrows you see for a momentum, like flickering but a mostly not
> > displayed. like 10 seconds you dont see s1 and then for a second you do
> > where as s2 you see all the time, it seems almost as if s1 and s2 are
> > sharing the same arrows.
> >
> > How do i stop this from happening, how do i get s1 and s2 to be displayed
> > together/ solid not flicker how it does. what am i doing wrong.
> >
> >
> > Thank you for any help
> >
> > rich
> >
>
> Can you flesh this out to make a complete, reproducible example?  This
> one has syntax errors such that it is not completely clear what you are
> trying to demonstrate.
>
> -Jonathan Brandmeyer
>
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