Reorganize import statements for consistency and clarity in model and training scripts

train.py

@@ -1,23 +1,26 @@
+from losses import ExponentialNLLLoss, PiecewiseExponentialLoss, WeibullNLLLoss, get_valid_pairs_and_dt
+from model import DelphiFork, SapDelphi
+from dataset import HealthDataset, health_collate_fn
+from tqdm import tqdm
+from torch.nn.utils import clip_grad_norm_
+from torch.utils.data import random_split
+from torch.utils.data import DataLoader
+from torch.optim import AdamW
+import torch.nn as nn
+import torch
 import json
 import os
 import time
 import argparse
 import math
+import sys
 from dataclasses import asdict, dataclass, field
 from typing import Literal, Sequence
 from pathlib import Path
 
-import torch
-import torch.nn as nn
-from torch.optim import AdamW
-from torch.utils.data import DataLoader
-from torch.utils.data import random_split
-from torch.nn.utils import clip_grad_norm_
-from tqdm import tqdm
-
-from dataset import HealthDataset, health_collate_fn
-from model import DelphiFork, SapDelphi
-from losses import ExponentialNLLLoss, PiecewiseExponentialLoss, WeibullNLLLoss, get_valid_pairs_and_dt
+_PROJECT_ROOT = Path(__file__).resolve().parent
+if str(_PROJECT_ROOT) not in sys.path:
+    sys.path.insert(0, str(_PROJECT_ROOT))
 
 
 @dataclass