今天在升级scapy的时候遇到的问题，搜索到解决问题的答案，为此记录，感谢博主。
尝试升级
pip install scapy --upgrade
报错
ERROR: Cannot uninstall ‘scapy’. 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.
解决方案
python -m pip install --user --upgrade scapy
或者
pip install --ignore-installed scapy
原因：pip版本问题，我的pip版本是19.3.1