code: def _join_path(self, hive, subkey):
          
          path = self._hives_by_value[hive]
          if subkey:
              path = path + '\\' + subkey
          return path
docs: Joins the hive and key to make a Registry path.
  
          @type  hive: int
          @param hive: Registry hive handle.
              The hive handle must be one of the following integer constants:
               - L{win32.HKEY_CLASSES_ROOT}
               - L{win32.HKEY_CURRENT_USER}
               - L{win32.HKEY_LOCAL_MACHINE}
               - L{win32.HKEY_USERS}
               - L{win32.HKEY_PERFORMANCE_DATA}
               - L{win32.HKEY_CURRENT_CONFIG}
  
          @type  subkey: str
          @param subkey: Subkey path.
  
          @rtype:  str
          @return: Registry path.