pkg_resources.DistributionNotFound: The 'pipenv==2018.10.13' distribution was not found and is required by the application

I've reinstalled pip and pipenv due to some broken package with ansible. Now, it seems like my pip dependencies are all screwed. Any suggestion or help is greatly appreciated.

$ which python2
 /usr/local/bin/python2

$ which python3
/usr/local/bin/python3

$ which pipenv
/usr/local/bin/pipenv


Traceback (most recent call last):
  File "/usr/local/Cellar/pipenv/2018.10.13/libexec/bin/pipenv", line 6, in <module>
    from pkg_resources import load_entry_point
  File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 3123, in <module>
    @_call_aside
  File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 3107, in _call_aside
    f(*args, **kwargs)
  File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 3136, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 580, in _build_master
    return cls._build_from_requirements(__requires__)
  File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 593, in _build_from_requirements
    dists = ws.resolve(reqs, Environment())
  File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pkg_resources/__init__.py", line 781, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pipenv==2018.10.13' distribution was not found and is required by the application

Solution

I had the same problem. You should reinstall pipenv using the same package manager you used the first time.

If the installation was done using pip, then:
```
pip uninstall pipenv
pip install pipenv
```
If you are using brew, then you must run the commands exposed by Andrei
```
brew uninstall pipenv
brew install pipenv
```

To check if pipenv installation was successfully completed, run: pipenv --version

From the comments, alternatively use:

brew reinstall pipenv