[Bugfix] Fixed mistral tokenizer path when pointing to file (vllm-project#17457)

Signed-off-by: Pete Savage <[email protected]>
Signed-off-by: Mu Huai <[email protected]>

Author: psav

vllm/transformers_utils/tokenizers/mistral.py

@@ -227,6 +227,7 @@ def from_pretrained(cls,
         else:
             assert Path(
                 path_or_repo_id).is_file(), f"Invalid path: {path_or_repo_id}"
+            tokenizer_file = str(Path(path_or_repo_id))
 
         from mistral_common.tokens.tokenizers.mistral import (
             MistralTokenizer as PublicMistralTokenizer)