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[Python-Dev] PEP 377 - allow __enter__() methods to skip the statement body

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Nick Coghlan wrote:
> One of the
> premises of PEP 343 was "Got a frequently recurring block of code that
> only has one variant sequence of statements somewhere in the middle?
> Well, now you can factor that out

Um, no -- it says explicitly right at the very top of
PEP 343 that it's only about factoring out try/finally
statements.

There's no way that

   try:
     code_block
   finally:
     ...

can fail to enter the code block if you get as far as
the "try". So it's not reasonable to expect the with
statement to provide this ability.

-- 
Greg

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