PicklingError: Can't pickle <type 'instancemethod'>: attribute lookup __builtin__.instancemethod failed

[rhsu0268]

Hi.

I am trying to follow your README to train a model and I seem to be getting the following error:

PicklingError: Can't pickle <type 'instancemethod'>: attribute lookup builtin.instancemethod failed

I tried going to keras version 1 but it still doesn't seem to be happy. The problem seems to be with this: model.fit_generator(train_generator,
validation_data=None,
validation_steps=X_test.shape[0],
steps_per_epoch=X_train.shape[0],
epochs=32,
verbose=2,
callbacks=None)
Can you let me know if I'm doing something wrong?

[sagarmk]

Add

import copy_reg
import types
import multiprocessing

def _pickle_method(m):
    if m.im_self is None:
        return getattr, (m.im_class, m.im_func.func_name)
    else:
        return getattr, (m.im_self, m.im_func.func_name)

copy_reg.pickle(types.MethodType, _pickle_method)

on that beginning of that code block and it should work fine