Python: create dictionary using dict() with integer keys?

Question

In Python, I see people creating dictionaries like this:

d = dict( one = 1, two = 2, three = 3 )

What if my keys are integers? When I try this:

Answer 1

a = dict(one=1, two=2, three=3)

Providing keyword arguments as in this example only works for keys that are valid Python identifiers. Otherwise, any valid keys can be used.