enter string into list according to a known rule

[korenron]

But if I want to converte only 1 item in list?
for example item on 4 place only?

def CutData(FullData, StartByte, length=1):
    StartByte = StartByte - 1
    EndByte = StartByte + length
    print(f'full data is {FullData}')
    Data_Byte = FullData.split(' ')
    print(f'Full Data_Byte is {Data_Byte}')
    Wanted_Data = str(Data_Byte[StartByte:EndByte])
    print(type(Wanted_Data))
    return Wanted_Data

if PID == "1E491DD0":
                Speed= (CutData(Data, 4, 1))
                print (str(type(Speed)) + "  " + Speed)

I get

full data is e5 a9 5c 7e b2 ff 02 00
Full Data_Byte is ['e5', 'a9', '5c', '7e', 'b2', 'ff', '02', '00']
<class 'str'>
<class 'str'>  ['b2']

when I do the same thing on console , it's working

>>> Test_List = ['12', '34', 'AA', 'F2']
>>> type(Test_List)
<class 'list'>
>>> type(Test_List[2])
<class 'str'>
>>> y = int(Test_List[2], 16)
>>> print(y)
170

also if I take your example - it's working (same class - both of them are strings)

>>> spam = bytearray(b'0P\x14}\x04\xf8\xff3')
>>> data = [f"{byte:02x}" for byte in spam]
>>> print(data)
['30', '50', '14', '7d', '04', 'f8', 'ff', '33']
>>> type(data[2])
<class 'str'>
>>> y = int(data[2], 16)
>>> print(y)
20

Thanks ,