Answers for "type python files means?"

python write to file

with open("test.txt",'w',encoding = 'utf-8') as f:
   f.write("my first filen")
   f.write("This filenn")
   f.write("contains three linesn")

python create unreadable save file

import hmac, pickle

# pickle the data
pickled = pickle.dumps(data)
digest =  hmac.new("some-shared-key", pickled, 
                   digestmod=<my choice of hasher>
                   ).hexdigest()

# now save the hashed digest and the pickled data
with open("some-file", "wb") as f:
    # save these in some way you can distinguish them when you read them
    print(digest, file=f)
    print(pickled, file=f)