the usage of 'yield' keyword

[Tim Golden]

Dave Angel wrote:

> def find(root):
>    for pdf in os.walk(root, topdown=False):
>            for file in pdf[2]:
>                yield os.path.join(pdf[0],file)
> 
> 


At the risk of nitpicking, I think that a modicum of
tuple-unpacking would aid readability here:

<code>

for dirpath, dirnames, filenames in os.walk (root, topdown=False):
  for filename in filenames:
    yield os.path.join (dirpath, filename)

</code>

TJG