[BUG] python -O bzr selftest fails

[Aaron Bentley]

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John A Meinel wrote:

> What if we changed the BzrNewError message such that it checks to see if
> there is a docstring, and if none is available, it tries its best.
> 
> Maybe just printing self.__dict__
> Or maybe something like:
> 
> bzr: ERROR: docstring unavailable, run without -OO, here is what I do know:
> 
> I realize that isn't the best text. But the idea is to have something
> like that.

I think bzr is dependent enough on docstrings, and that -OO is rare
enough, that we should just refuse to run.  I'd consider it a bug that
python -OO bzr commit -h didn't produce help, or that error messages
were broken.  At the bare minimum, we should do "Warning: bzr was
designed to be used with docstrings enabled."

If someone cares enough about -OO, they'll suggest how we can deal with
the problems.  Let's wait until there's evidence someone cares.

Aaron
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