Fix script

main.py

@@ -2,20 +2,16 @@ import os
 import sys
 from transformers import AutoTokenizer, AutoModelForSequenceClassification, TrainingArguments, Trainer
 import torch
-try:
-    import lzma
-except ImportError:
-    from backports import lzma
 import random
 
-IN_FILE_NAME = "in.tsv.xz"
+IN_FILE_NAME = "in.tsv"
 OUT_FILE_NAME = "out.tsv"
 TRAIN_PATH = "train"
 EXP_FILE_NAME = "expected.tsv"
 FILE_SEP = "\t"
 # PT_MODEL_NAME = "bert-base-cased"
 PT_MODEL_NAME = "roberta-base"
-DEVICE = "cpu"
+MODEL_OUT_NAME = "./model.tr"
 
 
 class CustomDataset(torch.utils.data.Dataset):
@@ -50,15 +46,19 @@ def main(dirnames):
     train_data = list(zip(train_set_features, train_set_labels))
     train_data = random.sample(train_data, 15000)
 
-    tokenizer = AutoTokenizer.from_pretrained(PT_MODEL_NAME)
+    mname = PT_MODEL_NAME
+    if os.path.exists(MODEL_OUT_NAME):
+        mname = MODEL_OUT_NAME
+    tokenizer = AutoTokenizer.from_pretrained(mname)
     model = AutoModelForSequenceClassification.from_pretrained(
-        PT_MODEL_NAME, num_labels=2)
+        mname, num_labels=2)
     train_set_enc = tokenizer(
         [text[0] for text in train_data], truncation=True, padding=True)
     ds = CustomDataset(
         train_set_enc, [int(text[1]) for text in train_data])
 
-    device = torch.device(DEVICE)
+    device = torch.device(
+        'cuda') if torch.cuda.is_available() else torch.device('cpu')
     model.to(device)
 
     trainer = Trainer(
@@ -70,6 +70,7 @@ def main(dirnames):
     print("Starting training...")
 
     trainer.train()
+    trainer.save_model(MODEL_OUT_NAME)
 
     print("Predicting outputs...")
 
@@ -84,10 +85,7 @@ def main(dirnames):
 
 
 def get_tsv_data(filename: str, compressed=False):
-    if compressed:
-        with lzma.open(filename=filename) as f:
-            return f.readlines()
-    else:
+    check_path(filename=filename)
     with open(filename) as f:
         return f.readlines()