http://www.pyimagesearch.com/2017/03/27/how-to-install-dlib/

1. Installing CMake,Boost,Boost.Python,and X11 can be accomplished easily with apt-get :

$ sudo apt-get install build-essential cmake
$ sudo apt-get install libgtk-3-dev
$ sudo apt-get install libboost-all-dev

1. 创建venv环境，进入venv，并用pip安装face_recognition

pip3 install face_recognition

1. 测试安装是否成功

import dlib
import face_recognition