/Python/AttributeError: Can't get attribute '' on <module '__main__'> pickle

AttributeError: Can't get attribute '' on <module 'main'> pickle

AttributeError: Can't get attribute '' on pickle

# Import the class that pickled the file in question into the object
# that does the unpickling

# BEFORE:
import pickle

def save_document(doc):

    from class_def import Document

    write_file = open(file_path, 'wb')
    pickle.dump(doc, write_file)

def load_document(file_path):
    from class_def import Document

    doc_file = open(file_path, 'rb')
    return pickle.load(doc_file)
  
  
if __name__ == '__main__':
    doc = Document()
    utils.save_document(doc)
    
    
# WORKING SOLUTION:
if __name__ == '__main__':
    from class_def import Document 
    # ^ so that it is using the Document class defined under the class_def module
    doc = Document()
    utils.save_document(doc)

Source: stackoverflow.com

Similar codes

0 vote209 views1 answer
Gtk label set label
Python
-3 votes187 views1 answer
Find key by value python
Python
44 votes197 views3 answers
Bytes to string python
Python
0 vote229 views1 answer
Insert-cells-in-empty-pandas-dataframe
Python
0 vote205 views3 answers
User serializer in django rest framework
Python
3 votes184 views1 answer
How to play music without pygame
Python
34 votes232 views6 answers
Flask example
Python Flask
0 vote178 views1 answer
Print red in python
Python
1 vote206 views1 answer
Bytes-like object
Python
5 votes197 views2 answers
Finding the index of an item in a pandas df
Python