解決 Cannot uninstall 'pyparsing' 問題

參考

pyparsing 沒法卸載致使安裝 matplotlib 出錯

解決 Cannot uninstall 'pyparsing' 問題

在安裝 pydot 時遇到依賴 pyparsing 沒法更新問題：

Successfully built pyparsing
Installing collected packages: pyparsing
  Found existing installation: pyparsing 2.0.1
Cannot uninstall 'pyparsing'. 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.

解決方法是手動重裝最新版 pyparsing：

sudo pip install -I pyparsing==2.2.0

2019.1