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On Tue, Feb 04, 2003 at 05:07:54PM -0000, Duncan Booth wrote:
> On 4 Feb 2003 at 16:45, Moore, Paul wrote:
> > My actual preference is for a lock object with enter =3D acquire and
> > leave =3D release. Then, the idiom is
> >=20
> > with my_lock:
> > # protected code
> >=20
> > This requires a separate enter hook.
>=20
> As opposed to:
>=20
> with lock(my_lock):
> # protected code
>=20
> which wouldn't.
>=20
> I prefer the second, but I'm not entirely sure why. I think,=20
> maybe, it's because the parentheses in the second one tell me=20
> we are actually doing something, whereas the first one looks=20
> like a variable access which is the one thing that can't=20
> actually have side effects.
Consider __nonzero__. It is an insidious implementation that mutates the
object, but it isn't impossible. In spite of this, I think I personally
prefer the second as well.
Jp
--=20
"I quite agree with you," said the Duchess; "and the moral of
that is -- Be what you would seem to be' -- or, if you'd like it put
more simply -- Never imagine yourself not to be otherwise than what it
might appear to others that what you were or might have been was not=20
otherwise than what you had been would have appeared to them to be
otherwise.'" -- Lewis Carrol, "Alice in Wonderland"
--=20
up 51 days, 7:50, 6 users, load average: 0.26, 0.35, 0.29
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