installTasks.py 文件源码

def onUninstall():
    path = os.path.join(config.getUserDefaultConfigPath(), ".dbInstall")
    if os.path.exists(path):
        #This is an update. Bail.
        os.remove(path)
        return
    key = _winreg.OpenKeyEx(_winreg.HKEY_CURRENT_USER, "Environment", 0, _winreg.KEY_READ | _winreg.KEY_WRITE)
    try:
        value, typ = _winreg.QueryValueEx(key, "Path")
    except:
        return
    if value is None or value == "":
        return
    dir = os.path.dirname(__file__)
    if not isinstance(dir, unicode):
        dir = dir.decode(sys.getfilesystemencoding())
    dir = dir.replace(addonHandler.DELETEDIR_SUFFIX, "")
    if value.find(dir) != -1:
        value = value.replace(";" + dir, "")
        value = value.replace(dir + ";", "")
        value = value.replace(dir, "")
        _winreg.SetValueEx(key, "Path", None, typ, value)
        sendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, 0, u"Environment")