kali install pip3

Today I wanna to install the pip3 on kali linux 2016.2,
but find a question:
There only be pip2 which is package manager for python 2.7 on the kali linux 2016.2.

I try to find the question on baidu search engine, but get no useful info which makes me depressed.

Then I try to install pip3 manually.

So I go to the official site: pip official document

Then I got the easiest way that I can not image…..

The easiest way..Wtf

just try python3 get-pip.py
of course you need to download it first.
get-pip.py