topic0 = {
    "topic" : "openWB/bat/get/soc",
    "line" : "0",
    "value" : ""
}
topic1 = {
    "topic" : "openWB/bat/get/power",
    "line" : "1",
    "value" : ""
}
topic2 = {
    "topic" : "openWB/counter/7/get/power",
    "line" : "2",
    "value" : ""
}
topic3 = {
    "topic" : "openWB/pv/8/get/power",
    "line" : "3",
    "value" : ""
}
topic4 = {
    "topic" : "openWB/graph/lastlivevaluesJson", #house-power
    "line" : "4",
    "value" : ""
}
topic5 = {
    "topic" : "openWB/vehicle/4/get/soc",
    "line" : "5",
    "value" : ""
}
topic6 = {
    "topic" : "openWB/internal_chargepoint/0/get/powers",
    "line" : "6",
    "value" : ""
}

topics = {0:topic0,1:topic1,2:topic2,3:topic3,4:topic4,5:topic5,6:topic6}

topics[3]['value'] = '20'


print(topics[3]["line"])

for topic_id, topic_info in topics.items():
    print("\nTopic ID:", topic_id)
    
    for key in topic_info:
        print(key + ':', topic_info[key])