[docs] [issue8652] Minor improvements to the "Handling Exceptions" part of the tutorial

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

The Python3 tutorial was already fixed, and the explanation of the parens is not needed there since the "old syntax" is not supported.

I did not do any reordering since the use of 'as' immediately follows in the text and seems to make fine sense as is.  Actually, it now makes more sense than the equivalent exposition in the Python3 docs, where the paragraph is absent.

Thanks for the patch, Marien.

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nosy: +r.david.murray
resolution:  -> fixed
stage: patch review -> committed/rejected
status: open -> closed
type:  -> behavior
versions:  -Python 3.1, Python 3.2, Python 3.3

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<http://bugs.python.org/issue8652>
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