but when I use the python data here he gives me another key about both cases.
You need to be careful with Python and make sure that you're feeding it the correct "type" of data... a lot of the Crypto libraries require "byte" data... so:
'fbbd3ddc686904eaf454'
and
b'fbbd3ddc686904eaf454'
are actually 2 different representations... first one is a string (ie. ASCII characters) and the 2nd is stored as actual bytes... You can refer here for a good example:
https://www.w3resource.com/python/python-bytes.php#hex-string-byte