On Wed, Nov 8, 2017 at 5:35 AM, Paul G <[email protected]> wrote:
> If dictionary order is *not* guaranteed in the spec and the dictionary order
> isn't randomized (which I think everyone agrees is a bit messed up), it would
> probably be useful if you could enable "random order mode" in CPython, so you
> can stress-test that your code isn't making any assumptions about dictionary
> ordering without having to use an implementation where order isn't
> deterministic.
>
> I could either be something like an environment variable SCRAMBLE_DICT_ORDER
> or a flag like --scramble-dict-order. That would probably help somewhat with
> the very real problem of "everyone's going to start counting on this ordered
> property".
Namespace is ordered by language spec.
What does SCRAMBLE_DICT_ORDER in this code?
class A:
def __init__(self):
self.a, self.b, self.c = 1, 2, 3
a = A()
print(a.__dict__)
a.__dict__.pop('a')
print(a.__dict__)
Anyway, I'm -1 on adding such option to dict. dict in CPython is complicated
already for performance and compatibility reason.
I don't want to add more complexity to dict for such reason.
Regards,
INADA Naoki <[email protected]>
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