class Inventory(): """ Inventory singleton class which uses storage backends to manage the inventory. """ def __init__(self): self._moduleName = BMConfigParser().safeGet("inventory", "storage") self._inventoryClass = getattr( getattr(storage, self._moduleName), "{}Inventory".format(self._moduleName.title()) ) self._realInventory = self._inventoryClass() self.numberOfInventoryLookupsPerformed = 0 # cheap inheritance copied from asyncore def __getattr__(self, attr): if attr == "__contains__": self.numberOfInventoryLookupsPerformed += 1 try: realRet = getattr(self._realInventory, attr) except AttributeError: raise AttributeError( "%s instance has no attribute '%s'" % (self.__class__.__name__, attr) ) else: return realRet # hint for pylint: this is dictionary like object def __getitem__(self, key): return self._realInventory[key]
class Inventory(): def __init__(self): #super(self.__class__, self).__init__() self._moduleName = BMConfigParser().safeGet("inventory", "storage") #import_module("." + self._moduleName, "storage") #import_module("storage." + self._moduleName) self._className = "storage." + self._moduleName + "." + self._moduleName.title() + "Inventory" self._inventoryClass = eval(self._className) self._realInventory = self._inventoryClass() self.numberOfInventoryLookupsPerformed = 0 # cheap inheritance copied from asyncore def __getattr__(self, attr): try: if attr == "__contains__": self.numberOfInventoryLookupsPerformed += 1 realRet = getattr(self._realInventory, attr) except AttributeError: raise AttributeError("%s instance has no attribute '%s'" %(self.__class__.__name__, attr)) else: return realRet
class Inventory(): def __init__(self): #super(self.__class__, self).__init__() self._moduleName = BMConfigParser().safeGet("inventory", "storage") #import_module("." + self._moduleName, "storage") #import_module("storage." + self._moduleName) self._className = "storage." + self._moduleName + "." + self._moduleName.title( ) + "Inventory" self._inventoryClass = eval(self._className) self._realInventory = self._inventoryClass() self.numberOfInventoryLookupsPerformed = 0 # cheap inheritance copied from asyncore def __getattr__(self, attr): try: if attr == "__contains__": self.numberOfInventoryLookupsPerformed += 1 realRet = getattr(self._realInventory, attr) except AttributeError: raise AttributeError("%s instance has no attribute '%s'" % (self.__class__.__name__, attr)) else: return realRet