[Python] Adding text file attachments to Keepass with pykeepass in python

I am trying to create and save KeePass entries using pykeepass and saving a .txt file as an attachment. However I get a type-error:

TypeError: bad argument type: bytes(b'Lorem Impsum bla bla bla')


My minimal reproducible example is:

from pykeepass import PyKeePass

kp = PyKeePass('testDatabase.kdbx', password='passwort')

generalGroup = kp.find_groups(name='General',first=True)
entry = kp.add_entry(
generalGroup,
title='title',
username='username'
password= 'password'
)

with open('loremipsum.txt', 'rb') as f:
entry.add_attachment('attachment.txt', f.read())

kp.save()



(All files are in the same directory, the file loremipsum.txt contains the line: "Lorem Impsum bla bla bla")

How do I have to convert the file content of a .txt-file to Bytes?

I am using the pykeepass Version: 4.1.0.post1, Keepass Version 2.58 and Python 3.13.

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