[Tutor] getting around ValueError in os.walk

[Andrew Fant]

Mea culpa, Mea Maxima Culpa.  I apoligize for sending quickly when I was trying 
to edit in vi.  Thanks to everyone who caught my typo and explained ValueError 
to me in detail.

Andy (vowing to RTFM more closely in the future)

-- 
Andrew Fant    | And when the night is cloudy    | This space to let
Molecular Geek | There is still a light          |----------------------
fant at pobox.com | That shines on me               | Disclaimer:  I don't
Boston, MA     | Shine until tomorrow, Let it be | even speak for myself