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 "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-b2PICB/unroll/

查看原因,大概是因为没有安装setuptools,解决方法:

pip install --upgrade setuptools

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:

pip install ez_setup

pip install unroll

如果还没成功,那么可能是pip或upgrade 没有安装成功setuptools,使用easy_install 安装:

easy_install -U setuptools

之后安装unroll:

pip install unroll