Python代码读取注册表

Question

from _winreg import *

"""print r"*** Reading from SOFTWARE\Microsoft\Windows\CurrentVersion\Run ***" """
aReg = ConnectRegistry(None,HKEY_LOCAL_MACHINE)

aKey = OpenKey(aReg, r"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")
for i in range(1024):
    try:
        asubkey=EnumKey(aKey,i)
        val=QueryValueEx(asubkey, "DisplayName")
        print val
    except EnvironmentError:
        break

任何人都可以纠正错误…我只想在HKLM \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \
Uninstall键的子项中显示“ DisplayName”。这是我得到的错误。

Traceback (most recent call last):
  File "C:/Python25/ReadRegistry", line 10, in <module>
    val=QueryValueEx(asubkey, "DisplayName")
TypeError: The object is not a PyHKEY object

Answer 1

文档说EnumKey返回带有键名的字符串。您必须使用_winreg.OpenKey函数显式打开它。我已经修复了您的代码段：

from _winreg import *

aKey = r"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall"
aReg = ConnectRegistry(None,HKEY_LOCAL_MACHINE)

print r"*** Reading from %s ***" % aKey

aKey = OpenKey(aReg, aKey)
for i in range(1024):
    try:
        asubkey_name=EnumKey(aKey,i)
        asubkey=OpenKey(aKey,asubkey_name)
        val=QueryValueEx(asubkey, "DisplayName")
        print val
    except EnvironmentError:
        break

请注意，并非每个键都有“ DisplayName”值可用。