How to create a Python virtual environment in Ubuntu?

Run the following commands:

> sudo apt update

> sudo apt install python3

> python3 -V

> sudo apt install python3-pip

> pip3 -V

> pip3 install virtualenv

> virtualenv env

> source env/bin/activate

(env) > python -V

Python 3.10.1

(env) > pip -V

pip 21.3.1 from /home/user/env/lib/python3.10/site-packages/pip (python 3.10)

(env) > deactivate

Other way of creating virtual environment:

> python3.10 -V

Python 3.10.1

> python3.10 -m venv venv1

> source venv1/bin/activate

(venv1) > python -V

Python 3.10.1

(venv1) >pip -V

pip 21.2.4 from /home/user/venv-1/lib/python3.10/site-packages/pip (python 3.10)

(venv1) > deactivate

>

> python -V

Python 3.8.10

> python -m venv venv2

> source venv2/bin/activate

(venv2) > python -V

Python 3.8.10

(venv2) > pip -V

pip 20.0.2 from /home/user/venv-2/lib/python3.8/site-packages/pip (python 3.8)

(venv2) > deactivate

>