venvの仮想環境作成・仮想環境のアクティベート

・仮想環境作成

python3 -m venv 仮想環境名

ここで、以下のようなエラーが出たら、

The virtual environment was not created successfully because ensurepip is not
available.  On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.

    apt install python3.8-venv

You may need to use sudo with that command.  After installing the python3-venv
package, recreate your virtual environment.

sudo apt install python3.8-venv

・仮想環境のアクティベート

source ./仮想環境名/bin/activate