$ pip3 install virtualenv
$ virtualenv venv
$ source venv/bin/activate
$ deactivate
(venv) $ pip3 install -Iv slackclient==2.2.1
(venv) $ pip3 install Flask
(venv) $ pip3 freeze | tee requirements.txt
(venv) $ pip3 install -r requirements.txt
- https://github.com/slackapi/python-slackclient
- https://api.slack.com/
- https://api.slack.com/tools/block-kit-builder
- PyCharm setting interpreter in venv
- Project setting Source Root
- list
- roll
- check
- rolling
- exec