Signature does not match base method in class

Please help understand how to specify the base class method signature which can take at least one and potentially additional arguments.

I need to have a forward method which takes at least X, and additional arguments which may not required depending on a sub class.

class Layer:      def forward(self, X, *args) -> float:  

The child class SoftmaxWithLogLoss forward has X and an additional argument T.

class SoftmaxWithLogLoss(Layer):      def forward(self, X: np.ndarray, T: np.ndarray) -> float:  <--- Signature does not match   

It causes a warning Signature of method 'SoftmaxWithLogLoss.forward()' does not match signature of base method in class 'Layer'.

Please explain what the cause is and how to fix.

https://stackoverflow.com/questions/66130676/signature-does-not-match-base-method-in-class February 10, 2021 at 11:51AM