> virtualenv is not installed by default It is, but it's called venv these days: python3 -m venv my_venv (Unless you're sticking to a very old version of P

> virtualenv is not installed by default It is, but it's called venv these days: python3 -m venv my_venv (Unless you're sticking to a very old version of Python, but in that case there's nothing the Python developers could do about it.)