[Python-3000] Exception re-raising woes (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Fri May 30 20:10:31 CEST 2008

Hello,

Guido van Rossum <guido python.org> writes:

That said, it seems you are proposing taking the logical consequence of making except handlers properly nested and scoped,

It's exactly that.

I would be okay as well with restricting bare raise syntactically to appearing only inside an except block, to emphasize the change in semantics that was started when we decided to make the optional variable disappear at the end of the except block.

This would render the following code illegal: def f(): try: 1/0 except: pass raise

Please note as well that:

def f(): try: 1/0 except: pass return sys.exc_info()

would return (None, None, None). Actually, it already does with the patch I proposed for #2507, and the test suite runs fine after fixing a problem in doctest.py.

Regards

Antoine.

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