[issue20517] Support errors with two filenames for errno exceptions

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

> This issue has been on my radar for a while (originally #16074).  But I
> wasn't paying strong attention to it.  Nobody in that issue came up with a
> solution I liked.  Finally when you posted your patch I said "ugh, can't we
> do better" and had to think about it before I realized we should just
> display both filenames.  If somebody had posted a patch with that two
> months ago I would have happily accepted it and we wouldn't be having this
> conversation now.

Actually that was Vajrasky's patch, and that was extended version of your 
patch. I asked you not because you are release manager, but because you are 
the author of the code and original patch.

I agree that support errors with two filenames is better solution than remove 
ambiguous filename attribute, but there is no much time left and we still don't 
have a patch. Vajrasky's patch is alternate variant for 3.4 in case when 
better patch will not be ready and is only solution for 3.3 (if we decide to 
fix this in 3.3).

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<http://bugs.python.org/issue20517>
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