[pypy-dev] do we still need to generate applevel _exceptions.py?

[Christian Tismer]

holger krekel wrote:

> Hi pypy-dev, 
> 
> We have pypy/lib/_exceptions.py which is a generated applevel
> definition and gets translated to pypy/module/exceptionsinterp.py 
> by Christian fine geninterp mechanism.  Now to fix some remaining 
> compliancy bugs it seems easy to fix the applevel exceptions definition 
> unless there is a need to still be able to regenerate that as well. 
> I'd guess the latter is not neccessary anymore so is it fine
> to just fix pypy/lib/_exceptions.py and regenerate?  And what
> was the incantation again to regenerate the exceptionsinterp.py 
> again (did i miss some piece of documentation somewhere)? 

I think we can continue to generate the exceptions. For migration
to future versions, it finds subtle argument additions quite nicely.

The only complicancy problems that I see are the __str__ methods.
There are just a few to be implemented by hand.
A mechanism to supply these methods is inside the generator.
As an example there is already one such method implemented,
see the end of pypy/tool/_enumerate_exceptions.py

About interpleveling the things, I agree with Armin that
this should be cache-generated, soon. Will look into that.

ciao - chris

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