[oe] [STABLE] Updating Python code to work nicer with Python 2.6

[Koen Kooi]

On 12-05-09 20:25, Marcin Juszkiewicz wrote:
> Some time ago I fixed BitBake trunk to not generate DeprecationWarnings
> when used with Python 2.6. Some time later Richard Purdie backported it
> into bitbake-1.8 branch. Now I tested it with stable/2009 and want to
> get it inside.
>
> Patch.bbclass change removes DeprecationWarnings too but has to keep
> compatibility with Python 2.4 so I had to use try/except block because
> hashlib is 2.5+

Less users pasting those 'errors' to me is always a good thing :)

regards,

KOen