Install the pip3 using apt

sudo apt install python3-pip

sudo apt install python3-venv

Using Virtual Environments

To get started, if you’re not using Python 3, you’ll want to install the virtualenv tool with pip:

$ pip3 install pip --upgrade 

$ pip3 install virtualenv

If you are using Python 3, then you should already have the venv module from the standard library installed.

Create a new virtual environment inside the directory:

# Python 2:
$ virtualenv env

# Python 3
$ python3 -m venv env 

In order to use this environment’s packages/resources in isolation, you need to “activate” it. To do this, just run the following:

$ source env/bin/activate
(env) $