[Python-Dev] Multiline with statement line continuation (original) (raw)

Devin Jeanpierre jeanpierreda at gmail.com
Sat Aug 16 10:04:13 CEST 2014

On Sat, Aug 16, 2014 at 12:25 AM, Ben Finney <ben+python at benfinney.id.au> wrote:

Steven D'Aprano <steve at pearwood.info> writes:

If people were going to be prone to mistake

with (a, b, c): ... as including a tuple … because the parens are a strong signal “this is an expression to be evaluated, resulting in a single value to use in the statement”. they would have already mistaken: with a, b, c: ... the same way. But they haven't. Right. The presence or absence of parens make a big semantic difference.

At least historically so, since "except a, b:" and "except (a, b):" used to be different things (only the latter constructs a tuple in 2.x). OTOH, consider "from .. import (..., ..., ...)".

Pretty sure at this point parens can be used for non-expressions quite reasonably -- although I'd still prefer just allowing newlines without requiring extra syntax.

-- Devin

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