pip安装软件时出现Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build*的解决方案

1. pip安装软件时出现：Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-*(其中×与要安装的软件有关)

   比如安装pip install pyparsing==1.5.7出现以下错误： Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-WImLdR/pyparsing/

2. 解决方案

   sudo python -m pip install --upgrade --force pip 
   sudo pip install setuptools==33.1.1