scikit_learn.py 文件源码

def check_params(self, params):
        '''Check for user typos in "params" keys to avoid
        unwanted usage of default values

        # Arguments
            params: dictionary
                The parameters to be checked
        '''
        legal_params_fns = [Sequential.fit, Sequential.predict,
                            Sequential.predict_classes, Sequential.evaluate]
        if self.build_fn is None:
            legal_params_fns.append(self.__call__)
        elif not isinstance(self.build_fn, types.FunctionType) and not isinstance(self.build_fn, types.MethodType):
            legal_params_fns.append(self.build_fn.__call__)
        else:
            legal_params_fns.append(self.build_fn)

        legal_params = []
        for fn in legal_params_fns:
            legal_params += inspect.getargspec(fn)[0]
        legal_params = set(legal_params)

        for params_name in params:
            if params_name not in legal_params:
                raise ValueError('{} is not a legal parameter'.format(params_name))