Установите PIP3
sudo apt install python3-pip
Long Locust
sudo apt install python3-pipsudo apt install python3-pip
on Fedora
sudo yum install python3-pipsudo apt update
sudo apt install python3-pip
pip3 --version[server]$ pip3 --version
pip 18.1 from /home/username/opt/python-3.6.2/lib/python3.6/site-packages/pip (python 3.6)