I have implemented a class which when instantiated dumped itself into the a pickle file in a form of a list, heres the psudo code for my case:
"""template/base.py"""
import pickle
DB_NAME = "db.pickle"
def update_records(filename, record_list):
with open(filename, 'wb') as f:
pickle.dump(record_list, f)
class Base:
records = []
def __init__(self):
...
def __new__(cls, *args, **kwargs):
self = super(Base, cls).__new__(cls)
cls.records.append(self)
update_records(DB_NAME, cls.records)
return self
and i had it subclassed into 5 different classes, inwhich CodingProblem is one of them, so i can use its new facility, in another script i did.
from templates import coding_probs
project = coding_probs.CodingProblem("codewar")
this saved the project to the db.pickle file but when i tried to unpickle them in the same file like below:
from pickle import load
from templates import coding_probs
from config import DB_NAME
# project = coding_probs.CodingProblem("codewar")
with open(DB_NAME, 'rb') as f:
data = load(f)
print(data)
it gave the error
AttributeError: Can't get attribute 'CodingProblem' on <module 'templates.coding_probs' from 'C:\\Users\\muham\\Desktop\\fun and learning\\project_manager\\templates\\coding_probs.py'>
i have consulted the following questions
Pickle AttributeError: Can't get attribute 'Wishart' on <module '__main__' from 'app.py'>
AttributeError: Can't get attribute 'GaitDataset' on <module '__main__' (built-in)>
but they didnt helped my case.
