pip install pipenv
pipenv shell
python --version
python
>>> import sys
>>> sys.executable
quit()
or
which python
pipenv install package-name
pipenv lock -r
pipenv uninstall package-name
pipenv install nose --dev
pipenv install -r ./requirements.txt
pipenv check
pipenv graph
pipenv install --ignore-pipfile
pipenv lock
exit
pipenv run *
pipenv --rm