Useful commands using python (maybe python 기본기?) 1. Making virtual env python -m venv ./env After python ver 3.3, venv is included in python installation ./env: where we are going to put our virtual environment 2. Going inside the virtual env (mac os) source env/bin/activate 3. Installing packages from requirements.txt pip install -r requirements.txt Similar with 'npm i' 4. Exit from virtual env..