Ubuntu安装Pillow失败：The headers or library files could not be found for jpeg...

问题：Ubuntu安装Pillow失败报错

The headers or library files could not be found for jpeg,
    a required dependency when compiling Pillow from source.

    Please see the install instructions at:
       https://pillow.readthedocs.io/en/latest/installation.html

解决方法：安装libjpeg-dev

sudo apt-get install libjpeg-dev