from __future__ import print_function

class config(object):

    def __init__(self):
        self.batch_size = 128
        self.epoch_num = 50

        self.optimizer_type = 'adam' # sgd, adagrad
        
        # pretrained word embedding 
        self.use_pretrained_word_embedding = True
        # when employing pretrained word embedding,  
        # out of vocabulary words' embedding is initialized with uniform or normal numbers
        self.OOV_fill = 'uniform'
        self.embedding_norm = False

        # or else, use padding and masks for sequence data
        self.use_lod_tensor = True

        # lr = lr * lr_decay after each epoch
        self.lr_decay = 1
        self.learning_rate = 0.001

        self.save_dirname = 'model_dir'

        self.train_samples_num = 384348
        self.duplicate_data = False

        self.metric_type = ['accuracy']
 
    def list_config(self):
        print("config", self.__dict__)

    def has_member(self, var_name):
        return var_name in self.__dict__

if __name__ == "__main__":
    basic = config()
    basic.list_config()
    basic.ahh = 2
    basic.list_config()