error: command 'gcc' failed with exit status 1 缺gcc环境：

yum install -y gcc
yum install -y libffi-devel python-devel openssl-devel

Python没有安装pip:

yum install python-pip

下载psutil

wget https://pypi.python.org/packages/source/p/psutil/psutil-3.2.2.tar.gz(https://pypi.python.org/packages/source/p/psutil/psutil-3.2.2.tar.gz)

当前目录安装：

tar -xf psutil-3.2.2.tar.gz
cd psutil-3.2.2
python setup.py install