python3.6无法安装PYWIN32的问题

原因是PYTHON3.6未在HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\写入3.6的信息

解决方法一:把下面的文本中路径改成自己的py3.6的,另存为.reg,然后导入

Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\SOFTWARE\Python]
[HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore]
[HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\3.6]
[HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\3.6\Help]
@=""
[HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\3.6\Help\Pythonwin Reference]
@="C:\\Python\\Python36\\Lib\\site-packages\\PyWin32.chm"
[HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\3.6\InstallPath]
@="C:\\Python\\Python36"
[HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\3.6\PythonPath]
@="C:\\Python\\Python36;C:\\Python\\Python36\\Lib\\;C:\\Python\\Python36\\DLLs\\"

解决方法二:用下面PY脚本,3.X版本都可以通用,自动会添加当前版本的信息

import sys
from winreg import *

# tweak as necessary
version = sys.version[:3]
installpath = sys.prefix

regpath = "SOFTWARE\\Python\\Pythoncore\\%s\\" % (version)
installkey = "InstallPath"
pythonkey = "PythonPath"
pythonpath = "%s;%s\\Lib\\;%s\\DLLs\\" % (
    installpath, installpath, installpath
)

def RegisterPy():
    try:
        reg = OpenKey(HKEY_CURRENT_USER, regpath)
    except EnvironmentError as e:
        try:
            reg = CreateKey(HKEY_CURRENT_USER, regpath)
            SetValue(reg, installkey, REG_SZ, installpath)
            SetValue(reg, pythonkey, REG_SZ, pythonpath)
            CloseKey(reg)
        except:
            print ("*** Unable to register!")
            return
        print (" Python", version, "is now registered!")
        return
    if (QueryValue(reg, installkey) == installpath and
        QueryValue(reg, pythonkey) == pythonpath):
        CloseKey(reg)
        print ("=== Python", version, "is already registered!")
        return
    CloseKey(reg)
    print ("*** Unable to register!")
    print ("*** You probably have another Python installation!")

if __name__ == "__main__":
    RegisterPy()