ubuntu install pip

C++
sudo apt install python3-pipsudo apt-get update

sudo apt install python3-pipsudo apt install python-pippython-pipcurl https://bootstrap.pypa.io/get-pip.py --output get-pip.pycd /tmp
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py
Source

Also in C++: