Python:查看注册表以查找程序的安装位置 [英] Python: Look into the registry to find install location of a program

问题描述

我正在尝试使用 Windows 注册表查找程序的安装位置.我设法找到了我需要的关键和价值.它们位于 Software\Microsoft\Windows\CurrentVersion\Uninstall 文件夹中.但是，当我运行以下脚本时，它找不到该文件.

I am trying to find the install location of a programme using the windows registry. I have managed to find the key and the value that I need. They are found in the Software\Microsoft\Windows\CurrentVersion\Uninstall folder. However when I run the following script, it can't find the file.

from _winreg import *

aReg = ConnectRegistry(None,HKEY_LOCAL_MACHINE)

aKey = OpenKey(aReg, r'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall', 0, KEY_READ)

[Pathname,regtype]=(QueryValueEx(aKey,"InstallLocation"))

print Pathname

CloseKey(aKey)
CloseKey(aReg)

回溯:

Traceback (most recent call last):
File "C:\Users\m.armstrong\Desktop\regression\regpy.py", line 7, in <module [Pathname,regtype]=(QueryValueEx(aKey,"InstallLocation"))
WindowsError: [Error 2] The system cannot find the file specified

我可以看到密钥但似乎无法访问它是怎么回事.

How is it that I can see the key but can't seem to access it.

推荐答案

您要求 SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall 的 InstallLocation 值.

您需要下某个子项的InstallLocation值SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall.

如果您想要一个特定的子项，只需将其名称添加到该路径即可.

If you want a particular subkey, just add its name to that path.

如果您想要所有这些，请使用 EnumKey 函数.像这样:

If you want all of them, use the EnumKey function. Something like this:

for i in itertools.count():
    try:
        subname = EnumKey(akey, i)
    except WindowsError:
        break
    subkey = OpenKey(akey, subname, 0, KEY_READ)
    pathname, regtype = QueryValueEx(subkey, "InstallLocation")
    print subname, pathname
    CloseKey(subkey)

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