Callbacks

Base

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CancelEpochException

Common base class for all non-exit exceptions.

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CancelBatchException

Common base class for all non-exit exceptions.

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CancelFitException

Common base class for all non-exit exceptions.

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Callback

 Callback ()

Initialize self. See help(type(self)) for accurate signature.

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run_cbs

 run_cbs (cbs, method_nm, pipeline=None)

class CompletionCB(Callback):
    def before_fit(self, pipeline): self.count = 0
    def after_batch(self, pipeline): self.count += 1
    def after_fit(self, pipeline): print(f'Completed {self.count} batches')

cbs = [CompletionCB()]
run_cbs(cbs, 'before_fit')
run_cbs(cbs, 'after_batch')
run_cbs(cbs, 'after_fit')

Completed 1 batches