[Python-checkins] cpython: Simplify and remove few dependencies on 'errno', thanks to PEP 3151.

[Terry Reedy]

On 10/28/2011 10:07 AM, florent.xicluna wrote:

>       def _stat(fn):
>           try:
>               f = open(fn)
> -        except IOError:
> -            raise _os.error
> +        except OSError:
> +            raise OSError

To me, the original two lines should have been deleted rather than 
replaced with a pair that seem equivalent to 'pass'. Am I missing some 
subtlety or is the above an artifact of two search and replaces?

>           f.close()

That aside, this patch and previous changes convince me that the new 
exceptions are a definite improvement.

Terry