On Mon, Mar 19, 2018 at 3:18 PM, Ben Finney <ben+pyt...@benfinney.id.au> wrote:
> Chris Angelico <ros...@gmail.com> writes:
>
>> Sounds like a set operation to me.
>>
>> expected = {"foo", "bar", "spam"}
>> missing = expected - set(json)
>
> That works (because iterating a dict returns its keys). But it is less
> immediately understandable, IMO, than this::
>
> expected = {"foo", "bar", "spam"}
> missing = expected - set(json.keys())
>
Sure, whichever way you want to do it. Either way, it's a set
difference operation that gives the OP's desired information.
ChrisA
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