pip 安装twisted库需要先安装依赖包，不然报"error: command 'gcc' failed with exit status 1"
# yum install gcc python-devel
# pip install twisted
pip 安装twisted库需要先安装依赖包，不然报"error: command 'gcc' failed with exit status 1"
# yum install gcc python-devel
# pip install twisted