Unpickling a file with python 3 that was pickled in python 2

Asked May 25 '19 at 04:31

Active May 25 '19 at 04:31

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I'm running a code written in python 2 (not sure the exact version) using python 3.6. I'm having difficulties unpickling a file in python 3 that was pickled in python 2.

I have tried solutions given in similar questions using joblib.load, but that doesnt work for python 3 either. I have also included the encoding=latin1 but still didnt work.

with open('final_model.pkl', 'rb') as f:
    model = pickle.load(f, encoding='latin1')

print("Loading other information...")

with open('final_tfidf.pkl', 'rb') as f:
    tf_vectorizer = pickle.load(f, encoding='latin1')
with open('final_idf.pkl', 'rb') as f:
    idf_vector = pickle.load(f, encoding='latin1')
with open('final_pos.pkl', 'rb') as f:
    pos_vectorizer = pickle.load(f, encoding='latin1')

the error message is: _pickle.UnpicklingError: invalid load key, '\x00'.

and it points to the first pickle.load statement: model = pickle.load(f, encoding='latin1')

asked May 25 '19 at 04:31

KoKo

Try removing the `, encoding='latin1'` from that line – inspectorG4dget May 25 '19 at 04:36
I did that, it didn't affect it. Still the same error. – KoKo May 25 '19 at 04:46
Possible duplicate of https://stackoverflow.com/questions/28218466/unpickling-a-python-2-object-with-python-3 – sh37211 May 25 '19 at 04:47
yes, a duplicate but the solutions given there didnt work for me. – KoKo May 25 '19 at 04:54
Can you verify that the pickle loads correctly in Python 2? – Davis Herring May 25 '19 at 07:17
Tried to do verify if it loads in Python 2 but encountered others errors, so I decided to start afresh in python 3. Thanks – KoKo Jun 03 '19 at 01:16

Unpickling a file with python 3 that was pickled in python 2

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