如何从另一个模块访问类中方法的变量？

Question

我有一个文件file1.py，它具有类和一个方法，我想在file2.py中导入方法的变量之一。

file1.py

class Consumer(threading.Thread):
    daemon = True
    def __init__(self, kafka_consumer, user_id):
        self._consumer = kafka_consumer
        self._user_id=user_id
    def processPriceUpdateMsg(self,msg):
        usersFullPositionData=globaldata.GlobalDataAdapter.GetFullPositionData(self._user_id)
        payloadStr=msg["payload"]
        payload=json.loads(payloadStr)
        bloombergIdentifier=payload['subscriptionId'].split("?")[0].split("/")[-1].strip()
        marketDataEvent=payload['MarketDataEvents']
        lastPrice=marketDataEvent['LAST_PRICE']

        priceupdateDF = usersFullPositionData.loc[usersFullPositionData['BloombergIdentifier'].isin([bloombergIdentifier])][['Price']]

file2.py

from file1 import Consumer

consumer1 = Consumer('<kafka.consumer.group.KafkaConsumer object at 0x0AD83F90>', 'User1', '10.10.60.212:9092','user1-positions')

def get_priceupdate_new_df():
    consumer1.processPriceUpdateMsg(msg).lastPrice

我想将lastPrice从file1（processPriceUpdateMsg）导入到file2。我该怎么办？