what raises StopIteration in mine Keras Model.fit_generator

Question

I have next code:

from sklearn.model_selection import train_test_split
from scipy.misc import imresize

def _chunks(l, n):
    \"\"\"Yield successive n-sized         


        

Answer 1

I found problem source. Firstly - mine dataset fully readed before fit end, so it raises

Exception in thread Thread-50:
Traceback (most recent call last):
File "C:\Anaconda3\Lib\threading.py", line 916, in _bootstrap_inner
self.run()
File "C:\Anaconda3\Lib\threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\user\venv\machinelearning\lib\site-packages\keras\utils\data_utils.py", line 560, in data_generator_task
generator_output = next(self._generator)
StopIteration

Exception handlers set stop_event and reraise exception

But :

def get(self):
    """Creates a generator to extract data from the queue.

    Skip the data if it is `None`.

    # Returns
        A generator
    """
    while self.is_running():
        if not self.queue.empty():
            inputs = self.queue.get()
            if inputs is not None:
                yield inputs
        else:
            time.sleep(self.wait_time)

So when stop event setted - it's can load data from queue

So I limited max_queue_size to 1.