os.walk bug?

[Gabriel Cosentino de Barros]

Hi

I'm new to the list. i found a bad behaviour of os.walk that i can reproduce
100% but didn't find an answer to why it does that

I have the folowing tree:

t:\dir1
t:\dir1\2000
t:\dir1\2001
t:\dir1\content
t:\dir2
t:\dir2\2000
t:\dir2\2001
t:\dir2\2002
t:\dir2\2003
t:\dir2\2004
t:\dir2\content
t:\dir2\templates

what i wanted was to loop in each dir and skip the years (i don't want to
touch archive). So i wrote:

for root, dirs, files in os.walk('t:\'):
	# -- do stuff
	print "working on", root		
	# -- stuff done

	print 'DEBUG: dirs =', dirs
	for d in dirs:
		# -- remove archive
		if d[:2] == '20':
			print "--- removing:", d
			dirs.remove(d)

And when i run it i got the following output
working on t:\
working on t:\dir1
DEBUG: dirs = ['2000', '2001', 'content']
--- removing 2000
--- removing 2001
working on t:\dir1\content
working on t:\dir2
DEBUG: dirs = ['2000', '2001', '2003', '2002', '2004', 'content']  <- why is
this in this sequence?
--- removing 2000
--- removing 2003
--- removing 2004
working on t:\dir2\2001
.
.
.

I am nuts?

running as os.walk('t:\dir2')  make it ignore the same dirs.
i'm using python 2.3 on windows 2000.
The t: drive is a webdav mount.


Thanks,
Gabriel

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