Работа с реестром

import os
os.popen('regedit.exe -ea C:\Font.reg "HKEY_LOCAL_MACHINE\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Fonts"')
print open('C:\Font.reg', 'r').read()

dump and load
>>> HKEY_CURRENT_USER.SOFTWARE.RegTest3 = load(HKEY_CURRENT_USER.SOFTWARE.RegTest)
>>> load(HKEY_CURRENT_USER.SOFTWARE.RegTest3)
{'test1': {'value4': 'Binary\x00', 'value3': 2, 'value2': 1, 'value1': u'val1'}, 'TestInt': 10, 'test3': {}, 'test2': {}, 'TestString': u'TestString'}

from _winreg import *
import sys
import _winreg
 
regpath = "SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths"
 
try:
    root = _winreg.OpenKey(
        _winreg.HKEY_LOCAL_MACHINE,
        regpath,
        0,
        _winreg.KEY_ALL_ACCESS)
except EnvironmentError:
    print u"Указанный раздел не существует"
    sys.exit(1)
 
for i in range(1024):
    try:
        keyname = EnumKey(root, i)
 
        print keyname
        #t= EnumKey(root+'\\'+str(keyname), i)
        # print y
 
    except WindowsError:
        break

from _winreg import *
 
aReg = ConnectRegistry(None,HKEY_LOCAL_MACHINE)
aKey = OpenKey(aReg, r"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")
for i in range(1024):
    try:
        keyname = EnumKey(aKey, i)
 
        print keyname
    except WindowsError:
        break