From 636d4bfb8994c7f123f15971af5d38a9754377ab Mon Sep 17 00:00:00 2001
From: comfyanonymous <comfyanonymous@protonmail.com>
Date: Sat, 19 Apr 2025 15:55:43 -0400
Subject: [PATCH] Fix hard crash when the spiece tokenizer path is bad.

---
 comfy/text_encoders/spiece_tokenizer.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/comfy/text_encoders/spiece_tokenizer.py b/comfy/text_encoders/spiece_tokenizer.py
index 21df4f86..caccb3ca 100644
--- a/comfy/text_encoders/spiece_tokenizer.py
+++ b/comfy/text_encoders/spiece_tokenizer.py
@@ -1,4 +1,5 @@
 import torch
+import os
 
 class SPieceTokenizer:
     @staticmethod
@@ -15,6 +16,8 @@ class SPieceTokenizer:
         if isinstance(tokenizer_path, bytes):
             self.tokenizer = sentencepiece.SentencePieceProcessor(model_proto=tokenizer_path, add_bos=self.add_bos, add_eos=self.add_eos)
         else:
+            if not os.path.isfile(tokenizer_path):
+                raise ValueError("invalid tokenizer")
             self.tokenizer = sentencepiece.SentencePieceProcessor(model_file=tokenizer_path, add_bos=self.add_bos, add_eos=self.add_eos)
 
     def get_vocab(self):