"""
TrainModelCommand class
==============================
"""
from argparse import ArgumentDefaultsHelpFormatter, ArgumentParser
from textattack import CommandLineTrainingArgs, Trainer
from textattack.commands import TextAttackCommand
[docs]class TrainModelCommand(TextAttackCommand):
"""The TextAttack train module:
A command line parser to train a model from user specifications.
"""
[docs] def run(self, args):
training_args = CommandLineTrainingArgs(**vars(args))
model_wrapper = CommandLineTrainingArgs._create_model_from_args(training_args)
train_dataset, eval_dataset = CommandLineTrainingArgs._create_dataset_from_args(
training_args
)
attack = CommandLineTrainingArgs._create_attack_from_args(
training_args, model_wrapper
)
trainer = Trainer(
model_wrapper,
training_args.task_type,
attack,
train_dataset,
eval_dataset,
training_args,
)
trainer.train()
[docs] @staticmethod
def register_subcommand(main_parser: ArgumentParser):
parser = main_parser.add_parser(
"train",
help="train a model for sequence classification",
formatter_class=ArgumentDefaultsHelpFormatter,
)
parser = CommandLineTrainingArgs._add_parser_args(parser)
parser.set_defaults(func=TrainModelCommand())