Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-b2PICB/unroll/
使用pip安装时出现错误:Command"pythonsetup.pyegg_info"failedwitherrorcode1in/tmp/pip-build-b2PICB/unroll/查看原因,大概是因为没有安装setuptools,解决方法:pipinstall--upgradesetuptools但是安装setuptools后仍然出现同样的错误,一种可能的原因是没有安装ez_setup: