fix: Check paths

src/train.py

@@ -1,3 +1,5 @@
+from pathlib import Path
+
 import torch
 from torch import nn
 from torch.utils.data import DataLoader
@@ -61,9 +63,12 @@ def train(
         model=model,
         train_loader=training_loader,
         validation_loader=validation_loader,
-        n_epochs=200,
+        n_epochs=n_trials,
         device=device
     )
 
     print("Saving model...")
-    torch.save(best_model, model_out or f"saved_models/{model.__class__.__name__}.pt")
+    f = model_out or f"saved_models/{model.__class__.__name__}.pt"
+    # Make sure path exists
+    Path(f).parent.mkdir(parents=True, exist_ok=True)
+    torch.save(best_model, f)