Packet Sniffer - TypeError: a bytes-like object is required, not 'str'

[bowlofred]

Load is a bytes object and your keyword are strings. Those can't be directly compared.

>>> load = b"bytes object with ascii data"
>>> "with" in load
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: a bytes-like object is required, not 'str'

If the data you captured was UTF-8, you could decode it to a str, or you could have your list of matching keywords as bytes. Either might make sense.

>>> b"with" in load
True
>>> "with" in load.decode()
True