minor fix

qwen_classifier/evaluate.py

@@ -17,7 +17,9 @@ from .globals import global_model, global_tokenizer
 
 eval_limit = os.getenv("EVAL_LIM")
 if not eval_limit:
-    eval_limit == EVAL_LIMIT
+    eval_limit = EVAL_LIMIT
+else:
+    eval_limit = int(eval_limit)
 
 def _load_data(test_data_path):
     test_data_path = Path(__file__).parent / test_data_path