"pip uninstall jupyter" does not work but, "which jupyter" returns a valid path [duplicate]

Question

I am trying to uninstall jupyter.

pip uninstall jupyter, it gives me this error:

Cannot uninstall requirement jupyter, not installed

but which jupyter says

/usr/local/bin/jupyter

I tried using pip install pip-autoremove and then pip-autoremove jupyter -y but that gave this error:

Traceback (most recent call last):
  File "/usr/local/bin/pip-autoremove", line 11, in <module>
    sys.exit(main())
  File "/Library/Python/2.7/site-packages/pip_autoremove.py", line 109, in main
    autoremove(args, yes=opts.yes)
  File "/Library/Python/2.7/site-packages/pip_autoremove.py", line 21, in autoremove
    dead = list_dead(names)
  File "/Library/Python/2.7/site-packages/pip_autoremove.py", line 28, in list_dead
    start = set(map(get_distribution, names))
  File "/Users/<username>/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 562, in get_distribution
    dist = get_provider(dist)
  File "/Users/<username>/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 436, in get_provider
    return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
  File "/Users/<username>/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 981, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/Users/<username>/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 867, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'jupyter' distribution was not found and is required by the application

---

Edit

updating question to include output of pip list

DEPRECATION: The default format will switch to columns in the future. You can use --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.conf under the [list] section) to disable this warning.
jupyter-client (5.1.0)
jupyter-console (5.2.0)
jupyter-core (4.3.0)

Answer 1

It looks like your question have already been answered here. Have a look and see if it solves your question or perhaps clarify the diferences from it.

In the meantime, have a look at a tip I can give you below.

---

Make use of virtualenv if possible, it will save you from future headaches like this.

Run pip install virtualenv.

Then in your project folder, or any desired folder call virtualenv venv.

I will create a virtual environment where you will have no packages installed or maybe just a few.

To use the newly created virtualenv just execute source venv/bin/activate.

Now run pip freeze and it will show you a clean package list.

Install all you requirements the same way as usual, I'll assume you know how to do it.

Then run your jupyter project.