Python：仅当字典值对是唯一的时才添加它们。如果它们已经存在，我需要打印字典值

Question

类VoqConnIngressList:

def addEntry(self,voqID, core, nofVoqs, remoteVOQconnector, remoteModID, unitID):
    key = [voqID+","+remoteModID]
    if key not in self.dictOfVoqs:
        self.dictOfVoqs[voqID+","+remoteModID] = [voqID, core, nofVoqs, remoteVOQconnector, remoteModID, unitID]

    else:
        print("Entry already present")

voqConnIngressList.addEntry(10, 30, 40, 50, 60, 1)

voqConnIngressList.addEntry(10, 30, 40, 50, 60, 1)

如果它检测到重复的话。然后我应该打印消息说它是重复的

当我键入此代码时，我得到以下错误

if key not in self.dictOfVoqs: TypeError: unhashable type: 'list'

Answer 1

在代码的第二行key = [voqID+","+remoteModID]，您正在将键作为一个列表。键不能是列表。拆下方括号key = voqID+","+remoteModID