Windows 7 32位系统下安装32位Python及配套工具

---python64 位安装32位python
原来安装的是64位，打包出来的程序也是64，到WIN7 32 上运行不了，需要安装32位python.
安装步骤如下:
1：安装32位python
python-3.7.2_x86.exe
安装路径如下，添加到系统path
C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32
2：复制对应的 python 程序，将名字增加'32',以便区分
python32.exe
3：升级 pip
python32 -m pip install --upgrade pip
4：复制对应的 pip 程序，将名字增加'32',以便区分
pip32.exe
pip安装路径如下，添加到系统path
C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\Scripts

重新打开cmd，是环境变量生效
5：安装 pywin32
ip32 install pywin32

C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\Scripts>pip32 install pywin32
Collecting pywin32
  Downloading https://files.pythonhosted.org/packages/ac/4d/c92043875d217bb272da07f2cb859e41541d63af26d3ca4f04da05eb5396/pywin32-228-cp37-cp37m-win32.whl (8.4MB)
    100% |████████████████████████████████| 8.4MB 2.7MB/s
Installing collected packages: pywin32
Successfully installed pywin32-228
6：安装 pyinstaller
C:\Users\Administrator\AppData\Local\Programs\Python\Python37-32\Scripts>pip32 install pyinstaller
Processing c:\users\administrator\appdata\local\pip\cache\wheels\ff\cf\00\f1b22a6ca2466b6160512395cfd3e521b9c4219f588de34322\pyinstaller-3.6-py3-none-any.whl
Collecting pywin32-ctypes>=0.2.0