GraphLab安装出错：Cannot uninstall 'certifi'. It is a distutils installed project

一、问题描述

1、进入anaconda2环境安装

activate gl-env
conda update pip
pip install --upgrade --no-cache-dir https://get.graphlab.com/GraphLab-Create/2.1/your registered email address here/your product key here/GraphLab-Create-License.tar.gz
conda install ipython-notebook

对应我这里就是：

pip install --upgrade --no-cache-dir https://get.graphlab.com/GraphLab-Create/2.1/[email protected]/8862-18BC-A187-AB2E-848C-05BC-6011-A1AD/GraphLab-Create-License.tar.gz

2、出现如下错误：

Installing collected packages: certifi, genson, multipledispatch, boto, jmespath, python-dateutil, botocore, docutils, bcdoc, colorama, pyasn1, rsa, awscli, functools32, jsonschema, psclient, backports.ssl-match-hostname, singledispatch, backports-abc, tornado, graphlab-create, GraphLab-Create-License
  Found existing installation: certifi 2018.4.16
Cannot uninstall 'certifi'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

二、问题解决

参考解答：https://stackoverflow.com/questions/50129762/graphlab-create-2-1-installation-fails-to-uninstall-certifi-a-distutils-insta

1、conda list查看此时gl-env的pip版本：

2、pip版本10.0，修改为9：

3、再重新安装graphlab：

certifi卸载成功，但也给了警告：