What is `1..__truediv__` ? Does Python have a .. (“dot dot”) notation syntax?

Question

I recently came across a syntax I never seen before when I learned python nor in most tutorials, the .. notation, it looks something like this:

Answer 1

Two dots together may be a little awkward at first:

f = 1..__truediv__ # or 1..__div__ for python 2

But it is the same as writing:

f = 1.0.__truediv__ # or 1.0.__div__ for python 2

Because float literals can be written in three forms:

normal_float = 1.0
short_float = 1.  # == 1.0
prefixed_float = .1  # == 0.1