I ha d not read all the e-mails in the thread - but just to announce
to people eager for a similar feature -
I have a package on pypi that enables one to do:
In [74]: with extradict.MapGetter({'a': 1}) as d:
...: from d import a
...:
In [75]: a
Out[75]: 1
(just pip install extradict )
On 8 June 2017 at 23:00, Joshua Morton <joshua.morto...@gmail.com> wrote:
> While I don't like that syntax, we do know that sets are unhashable, so we
> can be certain that that would be a TypeError if it was meant to construct a
> set containing a set. (ie. {{foo}} will always result in a TypeError in
> python).
>
> On Thu, Jun 8, 2017 at 1:40 PM Chris Angelico <ros...@gmail.com> wrote:
>>
>> On Fri, Jun 9, 2017 at 6:02 AM, MRAB <pyt...@mrabarnett.plus.com> wrote:
>> > It could also be used on the RHS to pack:
>> >
>> >>>> a = 1
>> >>>> b = 2
>> >>>> c = 3
>> >>>> d = 4
>> >>>> foo = {{a, b, c, d}}
>>
>> The trouble with that is that it's syntactically identical to creating
>> a set containing a set containing four values. That may cause
>> problems.
>>
>> ChrisA
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