今天尝试了一下在mac上安装dlib的过程：

brew install cmake

pip install

把这两个安装完以后，再安装dlib：

pip install dlib

安装部分日志如下：

  Stored in directory: /Users/wugaosheng/Library/Caches/pip/wheels/9e/ae/0b/df27975f0f616740b618f40c644067956e5413429acb6ae48e
  Removing source in /private/var/folders/mf/bv3nk1394f3c6y19kqgsrfn80000gn/T/pip-install-ffsz1xzg/dlib
Successfully built dlib
Installing collected packages: dlib

Successfully installed dlib-19.22.1
Cleaning up...
Removed build tracker '/private/var/folders/mf/bv3nk1394f3c6y19kqgsrfn80000gn/T/pip-req-tracker-i3occwtf'

参考文献

​​Python dlib的安装​​