Why does Python set([]) not equal {}? [duplicate]

Question

Set() and {} appear to give very similar behaviour, except for the confounding set([]) and {}. In the following comparisons, why is the last one False?

>>> set([1,2,3])=={1,2,3}
True
>>> set([1,2,3])==set([1,2,3])
True
>>> {1,2,3}=={1,2,3}
True
>>> set([])==set([])
True
>>> {}=={}
True
>>> set([])=={}
False

Answer 1

Because the {} literal is reserved for the empty dict, not the empty set

Answer 2

Because {} creates a dict.

In[49]: type({})
Out[49]: dict