problem with recursion
Steve Holden
steve at holdenweb.com
Thu Mar 3 17:34:00 EST 2005
vegetax wrote:
> How can i use a counter inside the recursive function?
> This code gives me the error 'local variable 'c' referenced before
> assignment'
>
I really don't think it does. I'd believe "local variable 'COUNTER'
referenced before assignment".
Rule one: always copy and paste the traceback ...
I presume you want a count of the directories you have traversed?
> #!/usr/bin/python
> from os import listdir
> from os.path import isdir,join,basename
> import HTMLgen
>
> dirpath = '/devel/python/html/test'
> COUNTER = 0
>
> def rec(f):
global COUNTER
> res = []
> COUNTER += 1
> for ele in listdir(f):
> res.append(ele)
> ele = join(f,ele)
> if isdir(ele):
> res.append(rec(ele))
> return res
>
> print HTMLgen.List(rec(dirpath))
>
>
regards
Steve
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