On 03/15/2013 02:31 PM, Dave Angel wrote:
On 03/15/2013 01:53 AM, Paradox wrote:
There is something I can't figure out about the following code (using
python 2.7.3):
def return_tree_files(rootpath, pattern):
for root, dirs, files in os.walk(rootpath):
i = [os.path.join(root, filename) for filename in
fnmatch.filter(files, pattern)]
return i
I thought the function would return a list of lists of filenames in the
rootpath and all subfolders. Instead I get only the filenames that
match the pattern in the rootpath, it doesn't go into the subfolders.
That's because you returned out of the loop, the first time through.
Each time through the loop, it describes one directory. Since your
return after the first one, that's the only directory you'll see.
That makes a lot of sense, thanks so much. I knew the return must be
doing something I didn't understand.
thomas
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