如何在python中访问作为参数传递给另一个类的类的方法

Question

我想创建一个类（比如，LockedAttributes）来安全地访问（读/写）多个线程的一些属性。我想将那些我想要作为列表共享的属性传递给LockedAttributes类。一些列表元素本身就是类对象，它有自己的setter和getter。如何从LockedAttribute类obj访问那些setter / getter？我使用getattr（）setattr（）可能是错误的。示例代码：

class Coord:

def __init__(self, x=0.0, y=0.0, z=0.0):
    self.x = x
    self.y = y
    self.z = z

def set_coordinator(self, x, y, z):
    self.x = x
    self.y = y
    self.z = z

def get_coordinator(self):
    return self.x, self.y, self.z

class LockedAttributes(object):
def __init__(self, obj):
    self.__obj = obj
    self.__lock = RLock()

def getmyPosition(self):
    with self.__lock:
        return self.__obj[0]

def getmySpeed(self):
    with self.__lock:
        return self.__obj[1]

def getcolPosition(self):
    with self.__lock:
        return self.__obj[2]
def getDistfromCol(self):
    with self.__lock:
        getattr(self, self.__obj[3]) 
def setDistfromCol(self, value):
    with self.__lock:
        setattr(self, self.__obj[3], value) 
def getcolactivationFlag(self):
    with self.__lock:
        getattr(self, self.__obj[4])

def setcolactivationFlag(self, value):
    with self.__lock:
        setattr(self, self.__obj[3], value)


class OBU():
def __init__(self):     
   pos = Coord()
  speed = Coord()
  colpos = Coord()
  distance_from_accident = 0.0
  Flag = False
  self.shared_attributes = LockedAttributes([ pos, speed, colpos, distance_from_accident, Flag])

  mypos= self.shared_attributes.getmyPosition()
  mypos.get_coordinator() # Not workinh

Answer 1

__init__类的LockedAttributes方法应该采用一个参数，以便您可以实际传递一个列表对象。

更改：

class LockedAttributes(object):
    def __init__(self):
        self.__obj = object
        self.__lock = RLock()

至：

class LockedAttributes(object):
    def __init__(self, obj):
        self.__obj = obj
        self.__lock = RLock()