用于读写注册表路径的python脚本

Question

我开发了一个python脚本,我有一个设置窗口,可以选择安装软件的路径.当点击设置窗口的OK按钮时,我想将所有选定的路径写入注册表并阅读设置窗口再次打开时相同.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

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.虽然它的工作但不满意我的编程方式.帮我解决更好的解决方案

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

Answer 2

与@Aramanethota相同,但使用pep8和func def以方便使用.

REG_PATH = r"SOFTWARE\my_program\Settings"

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

Answer 3

从注册表中读取的Python脚本如下:

try:
    root_key=OpenKey(HKEY_CURRENT_USER, r'SOFTWARE\my path to\Registry', 0, KEY_READ)
    [Pathname,regtype]=(QueryValueEx(root_key,"Pathname"))
    CloseKey(root_key)
    if (""==Pathname):
        raise WindowsError
except WindowsError:
    return [""]

要写入注册表的Python脚本是:

try:
    keyval=r"SOFTWARE\my path to\Registry"
    if not os.path.exists("keyval"):
        key = CreateKey(HKEY_CURRENT_USER,keyval)
    Registrykey= OpenKey(HKEY_CURRENT_USER, r"SOFTWARE\my path to\Registry", 0,KEY_WRITE)
    SetValueEx(Registrykey,"Pathname",0,REG_SZ,Pathname)
    CloseKey(Registrykey)
    return True
except WindowsError:
    return False

希望它能帮到你们所有人.欢迎:)

Answer 4

读取注册表项：

def read(path, root=HKEY_CURRENT_USER):
    path, name = os.path.split(path)
    with suppress(FileNotFoundError), OpenKey(root, path) as key:
        return QueryValueEx(key, name)[0]

并写道：

def write(path, value, root=HKEY_CURRENT_USER):
    path, name = os.path.split(path)
    with OpenKey(root, path, 0, KEY_WRITE) as key:
        SetValueEx(key, name, 0, REG_SZ, value)

扩展用于类型处理。提供类型作为参数，匹配注册表中的当前类型或 python 值类型。

def write(path, value, root=HKEY_CURRENT_USER, regtype=None):
    path, name = os.path.split(path)
    with OpenKey(root, path, 0, KEY_WRITE|KEY_READ) as key:
        with suppress(FileNotFoundError):
            regtype = regtype or QueryValueEx(key, name)[1]

        SetValueEx(key, name, 0, regtype or REG_DWORD if isinstance(value, int) else REG_SZ, str(value) if regtype==REG_SZ else value)

注意：对于旧版本， contextlib.suppress()（自 起可用）的使用python 3.4可以替换为 try.. except..pass。winreg 的上下文管理器接口是在python 2.6.