pipenv
Pipenv is a tool that aims to bring the best of all packaging worlds (bundler, composer, npm, cargo, yarn, etc.) to the Python world.
install
$ pip install pipenv $ pipenv --version pipenv, version 2018.7.1
initialize application with Python 3
$ pipenv --three
activate a virtualenv
$ pipenv shell Launching subshell in virtual environment… Welcome to fish, the friendly interactive shell
install Flask
$ pipenv install Flask
Error
TypeError: 'module' object is not callable''
Running pipenv gives TypeError: 'module' object is not callable #2871
アップデートして解消
$ pip install -U pipenv