It was due to that an object had a running or exited Process as a variable and it was starting another Process using that object. What's the best way to represent Hour of Day and Day of Week as a feature in for value prediction models in Machine Learning? All Answers or responses are user generated answers and we do not have proof of its validity or correctness. DataLoader Multiprocessing error: can't pickle odict_keys objects when num_workers > 0. zwacke April 29, 2019, 5:16pm #1. Ackermann Function without Recursion or Stack. Pythonexit()Python But it also means that the code Additional information. Why not use mlflow.keras.log_model or mlflow.keras.save_model > I've reduced the code slightly, but within NewModel class I will include several preprocessing functions/fitted scaler objects. All binary predictors in a classification task, Catboost understanding - Conversion of Categorical values, Error in Convolutional Neural network for input shape. I'm trying to extract features from music21.stream.Score objects, but when I try to use the multiprocessing.Pool.map function I get an error: File "C:\Users\ShakedD\PycharmProjects\PROJECT_AI\Temp.py", line 35, in extract_features, File "C:\Python27\lib\multiprocessing\pool.py", line 251, in map, return self.map_async(func, iterable, chunksize).get(), File "C:\Python27\lib\multiprocessing\pool.py", line 558, in get, cPickle.PicklingError: Can't pickle
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