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[Python-Dev] Bare except clauses in PEP 348
Niko Matsakisniko at alum.mit.edu
Wed Aug 24 09:07:58 CEST 2005
> As for the rest, I'm not as sure and it would be helpful to get> thoughts> from others on this one. My sense is that blocking the clause from> appearing in the middle is treating the symptom and not the disease.+1It would be better to prohibit bare except entirely (well, presumably at some point in the future with appropriate warnings at the moment) than change its semantics. I agree that its intuitive meaning is "if anything is thrown", not, "if a non-programmer-error exception is thrown," but I'm not sure if that's even important. The point is that it has existing well defined semantics; changing them just seems unnecessary to the aims of the rewrite and confusing to existing Python programmers.I've written plenty of code with bare excepts and they all intended to catch *any* exception, usually in a user interface where I wanted to return to the main loop on programmer error not abort the entire program. I don't relish the thought of going back and changing existing code, and I imagine there are few who do.My 2 cents,Niko
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