recursing glob

[Don Dwiggins]

Grant Griffin writes:
> Fredrik Lundh wrote:
>> 
>> Grant Griffin wrote:
>> > Somehow I never am happy with  stuff I do with os.walk--is it
>> > just me?
>> 
>> no.

> In retrospect, I think os.walk would be a lot friendlier if it passed
> two arguments to its function instead of one.  (When I first began with
> Python, I didn't realize that that "one" argument could be a list or a
> tuple.)

Maybe what's needed here is an implementation of the Visitor pattern from
the Gamma et al. "Design Patterns" book.  I did a file system Visitor in
Visual Basic (pardon my French!) as a learning exercise a while back, and
found it easy to implement and use once I grokked it (should be much nicer
in Python, though).  It's worth considering (not necessarily choosing)
Visitor whenever you need to "iterate" over a complex structure.

-- 
Don Dwiggins                    "Solvitur Ambulando"
Advanced MP Technology
dwig at advancedmp.net