python-2.7 - 用于读取和写入注册表路径的python脚本

Question

我开发了一个Python脚本，其中有一个设置窗口，其中包含选择软件安装路径的选项。当单击设置窗口的“确定”按钮时，我想将所有选定的路径写入注册表并在再次打开设置窗口时阅读相同内容。我的代码如下所示。

def OnOk(self, event):
    data1=self.field1.GetValue() #path selected in setting window
    aReg = ConnectRegistry(None,HKEY_LOCAL_MACHINE)
    keyVal=OpenKey(aReg,r"SOFTWARE\my path to\Registry", 0,KEY_WRITE)
    try:
       SetValueEx(keyVal,"Log file",0,REG_SZ,data1)
    except EnvironmentError:
       pass
    CloseKey(keyVal)
    CloseKey(aReg)

我收到如下错误:

Traceback (most recent call last):
File "D:\PROJECT\project.py", line 305, in OnOk
keyVal=OpenKey(aReg,r"SOFTWARE\my path to\Registry", 0,KEY_WRITE)
WindowsError: [Error 5] Access is denied

要从注册表中读取，保存的注册表必须显示在设置窗口中。我尝试使用下面的代码。虽然它可以工作，但对我编程的方式不满意。帮助我找到更好的解决方案

key = OpenKey(HKEY_CURRENT_USER, r'Software\my path to\Registry', 0, KEY_READ)
    for i in range(4): 
        try:
            n,v,t = EnumValue(key,i)
            if i==0:
                self.field2.SetValue(v)
            elif i==1:
                self.field3.SetValue(v)
            elif i==2:
                self.field4.SetValue(v)
            elif i==3:
                self.field1.SetValue(v)
        except EnvironmentError:                                               
            pass
CloseKey(key)

Answer 1

#Python3 version of hugo24's snippet
import winreg

REG_PATH = r"Control Panel\Mouse"

def set_reg(name, value):
    try:
        winreg.CreateKey(winreg.HKEY_CURRENT_USER, REG_PATH)
        registry_key = winreg.OpenKey(winreg.HKEY_CURRENT_USER, REG_PATH, 0, 
                                       winreg.KEY_WRITE)
        winreg.SetValueEx(registry_key, name, 0, winreg.REG_SZ, value)
        winreg.CloseKey(registry_key)
        return True
    except WindowsError:
        return False

def get_reg(name):
    try:
        registry_key = winreg.OpenKey(winreg.HKEY_CURRENT_USER, REG_PATH, 0,
                                       winreg.KEY_READ)
        value, regtype = winreg.QueryValueEx(registry_key, name)
        winreg.CloseKey(registry_key)
        return value
    except WindowsError:
        return None

#Example MouseSensitivity
#Read value 
print (get_reg('MouseSensitivity'))

#Set Value 1/20 (will just write the value to reg, the changed mouse val requires a win re-log to apply*)
set_reg('MouseSensitivity', str(10))

#*For instant apply of SystemParameters like the mouse speed on-write, you can use win32gui/SPI
#http://docs.activestate.com/activepython/3.4/pywin32/win32gui__SystemParametersInfo_meth.html