Install Python3.7 on Ubuntu 18.04

Run it

sudo apt-get update \
  && apt-get -y install software-properties-common curl && add-apt-repository ppa:deadsnakes/ppa -y && apt-get update && apt-get -y install python3.7-dev \
  && update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 1 \
  && curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && python3 get-pip.py --force-reinstall && rm get-pip.py \
  && pip install --upgrade pip setuptools wheel