pip matplotlib报错equired packages can not be built解决

pip安装matplotlib 在centos6.5 64bit上用pip安装matplotlib时候报错: * The following required packages can not be built: * freetype, png error: Setup script exited with 1 这是因为pip不能安装操作系统的依赖库导致的,需要用yum手动安装: $ yum -y install freetype-devel libpng-devel 如果不知道这些库需要安装的包名,可以查一下: $ yum search freetype | g