how do i make the `which pip3` the same directory as `pip3 --version`?

I have a mac. os sierra. python3.6. i'm having issues with `pip3`. i would like to continue working in python3.6 without using homebrew or virtual environment.

pip3:

```
$ which pip3
/Library/Frameworks/Python.framework/Versions/3.6/bin/pip3

$ pip3 --version
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)

```

pip:

```
$ which pip
/Library/Frameworks/Python.framework/Versions/2.7/bin/pip

$ pip --version
pip 9.0.1 from /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (python 2.7)

```

thank you for your help.