dirwalk.py generator version of os.path.walk

[Jim Dennis]

In article <mailman.1014959642.30993.python-list at python.org>, Tim Peters wrote:
>
>[Jim Dennis]
>>  I guess I'm just wary of recursion, particularly when I've read
>>  that Python doesn't support tail-end recursion.


> If I were Jim, I'd continue leaving recursion out of this specific
> application.  An explicit "todo list" trivially supports either
> breadth-first or depth-first traversal (a choice Jim explicitly mentioned as
> something he wants to control).  Calling it "a stack" is an illusion
> suffered by those blindly embracing recursion <wink>.

 Calling it a "stack" was actually a bad idea.  It's an aggenda or
 a todo list, that might be used as a FIFO or a stack --- or even 
 in some arbitrary order.

 However, it made the intent reasonably clear, even it it was a 
 tiny bit misleading.