On 26.01.15 00:59, Guido van Rossum wrote:
Interestingly, the non-dict versions can all be written today using a
double-nested comprehension, e.g. {**x for x in it} can be written as:

     {x for x in xs for xs in it}

     {x for xs in it for x in xs}

But it's not so straightforward for dict comprehensions -- you'd have to
switch to calling dict():

     dict(x for x in xs for xs in it)

     {k: v for xs in it for k, v in xs.items()}

So actually this is just a syntax sugar.


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