Python 3 migration docs say to use pip after removing it

[lampwins]

Issue type

[ ] Feature request
[ ] Bug report
[ x ] Documentation
[ ] Housekeeping

Environment

• Python version: 3.5
• NetBox version: 2.3.6

Description

The first step in the python migration docs say to remove python-pip but later tell you to use pip.

# apt-get remove --purge -y python-dev python-pip
...
# pip uninstall gunicorn

[jeremystretch]

apt-get install ... python3-pip should install pip3 as /usr/local/bin/pip:

$ pip -V
pip 9.0.1 from /usr/local/lib/python3.5/dist-packages/pip-9.0.1-py3.5.egg (python 3.5)

It's all something of a crapshoot honestly...

[lampwins]

Probably a non-issue anyway. Uninstalling gunicorn with pip failed for me obviously, but I continued to install it again with pip3 and it was all fine.

[jeremystretch]

Tweaked this in the v2.4-docs branch as part of the ongoing refresh for the v2.4 release.