Backport di Python 3.7

Su Debian 9 Stretch

apt-get install build-essential curl gcc git \
  default-libmysqlclient-dev \
  libadns1-dev libbz2-dev libc6-dev libdb-dev libffi-dev \
  libgdbm-dev libncurses5-dev libncursesw5-dev \
  libreadline-dev libsqlite3-dev libssl-dev \
  openssl \
  python-dev python-pip python-setuptools python-smbus \
  tk-dev \
  zlib1g-dev
pyenv install 3.7.3