https://gist.github.com/aroraayush/7b001903885bd35b902269babe2ccea8
pip3 install pipenv
pipenv shell
python --version
python
>>> import sys
>>> sys.executable
quit()
pipenv install camelcase
pipenv lock -r
pipenv uninstall camelcase
pipenv install nose --dev
pipenv install -r ./requirements.txt
pipenv check
pipenv graph
pipenv install --ignore-pipfile
pipenv lock
exit
pipenv run *
pipenv lock
pipinstall install --ignore-pipfile