Install pyinstaller

There are two ways to install pyinstaller

• other 99% All packages can be installed in my way
• The first way is ：pip install pyinstaller( almost 99% All packages can be installed like this )
  The following error occurred ：
  
• The second way ：

Go to the download package website https://www.lfd.uci.edu/~gohlke/pythonlibs/ Download the corresponding package , Such as pyinstaller（ Be sure to follow your own python edition ）

Find your download directory , And then in cmd in pip install:
Such as ：pip install C:\Users\84262\Downloads\PyInstaller-3.6-py2.py3-none-any.whl