Make a note so as not to forget it.
pyenv
//List of installable python versions
$ pyenv install --list
//python install command
$ pyenv install (Any version)
//Version setting(If local, reflect in current dir)
$ pyenv local (Any version)
//Version setting(In the case of global, it is reflected in the whole)
$ pyenv global (Any version)
//Check version
$ python --version
//List of installed versions
$ pyenv versions
pipenv
//Package installation
$ pipenv install (package name)
//Package installation(Version specified)
$ pipenv install (package name)==(Any version)
//Install packages used only in the development environment
$ pipenv install --dev (package name)
//Install by specifying the version of Python itself
$ pipenv --python (Any version)
//Start shell in the environment created by pipenv
$ pipenv shell
//Check the path of the virtual environment
$ pipenv --venv
//Package security vulnerability detection
$ pipenv check
//View package dependency graph
$ pipenv graph
$ pipenv graph --reverse
//sample with pipenv run start.Example of starting py
[scripts]
start = "python sample.py"
$ pipenv run start