https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tgz
python3.7.1 提示 ModuleNotFoundError: No module named '_ssl'
先./configure --prefix=/usr/bin --with-ssl-default-suites=python
python3.7.1 提示 ModuleNotFoundError: No module named ‘_ctypes’
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install libffi-dev
再make && make install