Install python3.6 in linux mint
sudo add - apt - repository ppa : jonathonf / python - 3.6 # (only for 16.04 LTS) sudo apt update sudo apt install python3 . 6 sudo apt install python3 . 6 - dev sudo apt install python3 . 6 - venv wget https :// bootstrap . pypa . io / get - pip . py sudo python3 . 6 get - pip . py sudo ln - s / usr / bin / python3 . 6 / usr / local / bin / python3 sudo ln - s / usr / local / bin / pip / usr / local / bin / pip3