[Python-Dev] cpython: Rename contextlib.ignored() to contextlib.ignore().

[Ethan Furman]

On 10/15/2013 09:28 AM, PJ Eby wrote:
> On Tue, Oct 15, 2013 at 11:52 AM, R. David Murray wrote:
>>
>> What about making the context manager provide the trapped exception,
>> in a fashion similar to what assertRaises does?
>
> Sadly, that won't work, since context managers provide a value
> *before* the block is executed, not after.

However, if the CM provides the value before, and the with block accepts it, it can then have the exception added to it:

     with trap(OSError) as cm:
         os.unlink('missing.txt')
     if cm.exc:
         do_something()

--
~Ethan~