SyntaxError: invalid syntax ??

[snippsat]

this is an old PI3 , maybe I can't make it work ?

Which version did you install?
The newest is python 3.10 or python 3.9.5 as used in tutorial?
What folder do cd into after extracted files?
To run directly

python3.10 myscript.py
# Or
python3.9 myscript.py

but how can I do it for this part:

data_byte = b'123'
data_temp = ["{:02X}".format(byte) for byte in data_byte]
print(data_temp)

Output:
['31', '32', '33']