Raymond Hettinger added the comment:

> Please don't close the issue, Stéphane is fixing real bug.

He appears to be doing a blanket search and replace without adding tests, 
without evaluating each change to see if makes sense, and without consulting 
the original author of each affected piece of code.

We have never received a bug report on any one of these.  If you think any one 
of them is an actually bug, it should be carefully considered one at a time, 
evaluating why the bare except was put there in the first place.  

Guido pushes for holistic refactoring for a reason.  It is too easy to 
introduce bugs into stable code by these kind of wholesale changes.

If you (Victor) want to individually study each one to make sure it is the 
right thing to do, I would place more faith in the patch.  But as it stands 
now, reviewing the patch for correctness will take substantially more care and 
thought than it took to create it in the first place.

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<http://bugs.python.org/issue21259>
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