Idiots guide to code objects, frame objects and settrace?

Michael Hudson mwh at
Thu Feb 21 12:19:32 CET 2002

quinn at (Quinn Dunkan) writes:

> On Tue, 19 Feb 2002 22:28:50 -0000, Tim Rowe <tim at> wrote:
> >Is there an idiots guide to code objects, frame objects and settrace
> >anywhere? I want one program to monitor the execution of another. I've
> >looked at from the Vaults of Parnassus, but can't make enough
> >sense of it to adapt it to do what I want.
> A combination of the langref and interactive mucking around worked
> just fine for me.  They're not very complicated.  The only possibly
> confusing bit is that tb_next points downstream and f_back points
> upstream... or is it the other way around?

tb_next points "cross-stream" more than anything doesn't it?  It's
almost always None, anyway (if I'm thinking of the right field).


  If Unicode is a horde of zombies with flaming dung sticks, 
  the hideous intricacies of JIS, Chinese Big-5, Chinese 
  Traditional, KOI-8, et cetera are at least an army of ogres 
  with salt and flensing knives.        -- Eric S. Raymond, python-dev

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