pyenv exec python3 main.py
#OR
./start.sh
#craete a new env
pyenv virtualenv <python-version> <env-name>
#set the new env as local env
pyenv local <env-name>
#download whatever you need
pyenv exec pip install <lib-name>
#freeze
pyenv exec pip freeze -l > requirements.txt
- https://qiita.com/Kodaira_/items/feadfef9add468e3a85b
- https://qiita.com/ksato9700/items/5d9eba10fe6b8e064178