[Python-Dev] OSError.errno => exception hierarchy?

[Jack diederich]

On Thu, Apr 2, 2009 at 4:25 PM, Benjamin Peterson <benjamin at python.org> wrote:
> 2009/4/2 Gustavo Carneiro <gjcarneiro at gmail.com>:
>> Apologies if this has already been discussed.
>
> I don't believe it has ever been discussed to be implemented.
>
>> Apparently no one has bothered yet to turn OSError + errno into a hierarchy
>> of OSError subclasses, as it should.  What's the problem, no will to do it,
>> or no manpower?
>
> Python doesn't need any more builtin exceptions to clutter the
> namespace. Besides, what's wrong with just checking the errno?

The problem is manpower (this has been no ones itch).  In order to
have a hierarchy of OSError exceptions the underlying code would have
to raise them.  That means diving into all the C code that raises
OSError and cleaning them up.

I'm +1 on the idea but -1 on doing the work myself.

-Jack