Protecting against callbacks queuing up?

[Esben von Buchwald]

Hendrik van Rooyen wrote:

> see if there is an "after" method somewhere.
> 
> What you have to do is to "break the link" between the callback
> and the processing.  Your code above is all in the callback "thread", despite 
> the fact that you call another function to do the processing.
> 
> So if you replace the data_callback() with an after call, it should work as 
> you expect.
> 
> HTH - Hendrik
> 

Thanks

I'm new to python, what is an after function and an after call? Couldn't 
find excact answer on google...? Do you have a link to some docs?