[Python-Dev] PEP 318 - generality of list; restrictions on

elements ([original](http://mail.python.org/pipermail/python-dev/2004-March/043062.html)) ([raw](?raw))

Michael Hudson mwh at python.net
Thu Mar 11 05:45:48 EST 2004

Aahz <aahz at pythoncraft.com> writes:

On Thu, Mar 11, 2004, Greg Ewing wrote:

Aahz <aahz at pythoncraft.com>:

* A single identifier (which must be a callable) * Comma-separated list of identifiers (which must be callables) * Arbitrary expression (which must produce a sequence of callables) You left out * Comma-separated list of arbitrary expressions which is the one I'm in favor of. If we allow truly arbitrary expressions, that comes for free, by definition. ;-)

Yes, but that's not the point! What my patch currently allows is a 'exprlist', whuch is a "comma-separated list of arbitrary expressions", and is The Only Sane Choice (tm). Allowing a listmaker (or whatever that production is called) and so list comprehensions is barmy.

Besides, a literal reading of

Arbitrary expression (which must produce a sequence of callables)

would suggest

def foo [staticmethod] (): pass

was in error!

Cheers, mwh

-- Now this is what I don't get. Nobody said absolutely anything bad about anything. Yet it is always possible to just pull random flames out of ones ass. -- http://www.advogato.org/person/vicious/diary.html?start=60

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