Check if dictionary empty with == {}

[MRAB]

On 2015-08-20 00:15, Skip Montanaro wrote:
> Comparison against {} will be less efficient. You need to create a
> dictionary every time instead of just checking the length of your
> dictionary, which is likely stored in the header. So, it will work, but
> certainly isn't idiomatic Python.
>
Well, that depends on the intention.

Is it checking whether the dictionary is empty, or whether it's an
empty dictionary (and not, say, an empty list)?