linux安装pillow报错：
ValueError: jpeg is required unless explicitly disabled using --disable-jpeg, aborting
经搜索，找到如下两种方案：
一：
sudo yum install python-devel
sudo yum install zlib-devel
sudo yum install libjpeg-turbo-devel
二：
sudo apt-get install libtiff5-dev libjpeg8-dev zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python-tk
我用的第一种，下面那种可能不支持我用的linux版本，仅留作备用。执行后，再次运行pip install pillow就可以了。
ValueError:--enable-zlib requested but zlib not found, aborting.
Ubuntu14.04下运行pip install pillow==3.1.1报错，ValueError: --enable-zlib requested but zlib not found, aborting.
$ sudo apt-get build-dep python-imaging
$ sudo apt-get install libjpeg8 libjpeg62-dev libfreetype6 libfreetype6-dev
$ pip install Pillow==3.1.1