Python version 2.7 required, which was not found in the registry 的问题解决

最近模拟鼠标点击网页来爬取数据，碰到安装pyhook的第三方库。在安装pyHook-1.5.1.win32-py2.7.exe时报错了。

报错的内容为: Python version 2.7 required, which was not found in the registry

这时候需要注册一下python 2.7才能安装。

这里创建一个文件 register.py 然后执行该脚本.（内容如下）

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()

执行完上述的代码，再次点击安装pyHook-1.5.1.win32-py2.7.exe就可以了。