安装tensorflow出现的python-setuptools 20.7.0问题

1.问题

ERROR: markdown 3.2.1 has requirement setuptools>=36, but you'll have setuptools 20.7.0 which is incompatible.
Installing collected packages: protobuf, numpy, html5lib, bleach, werkzeug, markdown, tensorflow-tensorboard, tensorflow
Successfully installed bleach-1.5.0 html5lib-0.9999999 markdown-3.2.1 numpy-1.18.1 protobuf-3.11.3 tensorflow-1.3.0 tensorflow-tensorboard-0.1.8 werkzeug-1.0.0

解决：

 卸载python-setuptools：
1 sudo apt-get remove python-setuptools
2 sudo apt-get update


因为用apt-get安装的python-setuptools还是20.7.0-1,所以用pip安装： 
pip2 install setuptools

可成功安装44.0.0版本。

再重新安装tensorflow：

pip --default-timeout=100 install tensorflow==1.3.0 -i https://pypi.tuna.tsinghua.edu.cn/simple

(此处选择从清华源下载，并扩展了时间）