from itertools import chain

data = '7E010101120304050607087E010301020304050607987E01090102030405060710'
data = "7E0000000000000000A15E1F197E0000000000000000C10311197E0000000000000000811D16197E0000000000000000815D1F197E000000000000000011C919197E000000000000000061B61B197E0000000000000000000000007E0000000000000000E1E00F197E000000000000000021E00F197E000000000000000041D20F197E0000000000000000111D21197E0000000000000000319A0D197E0000000000000000C1E10F197E0000000000000000A11E16197E0000000000000000B11D1619"
result = {}
# for i in range(0, len(data), 22):
#     key = int(data[i + 2:i + 4], 16)
#     value = data[i + 6:i + 22]
#     result.setdefault(key, []).append(value)
#
# print(result)
"""{1: ['A15E1F19', 'C1031119', '811D1619', ]}"""
data_list = data.split("7E")
for index, data in enumerate(data_list):
    print(data)
    print("===")
    if data and len(data) > 8:
        value = data[-8:]
        if value != "00000000":
            result.setdefault(value, index)
print(result)
# out_rfid_set = set(list(chain.from_iterable(result.values())))
out_rfid_set = set(i for i in result.keys() if i != "00000000")
print(out_rfid_set)
a = {'61B61B19', '21E00F19', '111D2119', 'C1E10F19',}
b = {'61B61B19', '21E00F19', '111D2119'}