On 2020-08-06 14:16, Stestagg wrote:
> I was following you right up till this bit:
>
>
>     By the way, as previously noted
>          d[1, 2]
>          d[(1, 2)]
>     are at present equivalent. However, in the new syntax
>          d[1, 2, a=3]
>          d[(1, 2), a=3]
>     are not equivalent. (The first has three arguments, the second two,
>     the first of which is a tuple.)
>
> In the "New syntax", wouldn't these examples map to:
>
> d[1, 2, a=3]  =>  d.__getitem__((1, 2), a=3)
> and
> d[(1, 2), a=3]  =>  d.__getitem__((1, 2), a=3)
>
Not quite. The second should be:

d[(1, 2), a=3]  =>  d.__getitem__(((1, 2),), a=3)

> I.e. My understanding was that the existing conversion of all positional
> parameters in a subscript would be packed into a tuple (strictly for
> consistency with legacy behaviour) while any keywords would be passed as
> kwargs?
>
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