threading.RLock not subclassible?

[Aahz Maruch]

In article <3A7D5B5F.AADAA673 at ll.mit.edu>, John Gault  <gry at ll.mit.edu> wrote:
>
>I would like to make a subclass of threading.RLock so I can
>add a 'safe_acquire' method.  Safe_acquire would use non-
>blocking acquires and sleeps over several iterations to try
>to acquire the lock, but would eventually return so my thread
>is not forever blocked.

I think that it would be better for you to just create a brand-new class
that contains an RLock object.  Is there some reason to avoid that?
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