message: Set 3.7 as python version for install pip packages.
diff: set -e
  -sudo add-apt-repository -y ppa:deadsnakes/ppa
  -sudo apt-get -y update
  -sudo apt-get install -y python3.8
  -
  # Get the latest version of pip so it recognize manylinux2010
  wget https://bootstrap.pypa.io/get-pip.py
  -python3.8 get-pip.py
  +python3.6 get-pip.py
  python get-pip.py
  rm -f get-pip.py
  