include missing data package wordnet (#37366)

Author: ninghu

sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/evaluators/_meteor/_meteor.py

@@ -1,8 +1,8 @@
 # ---------------------------------------------------------
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # ---------------------------------------------------------
+import nltk
 from nltk.translate.meteor_score import meteor_score
-
 from promptflow._utils.async_utils import async_run_allowing_running_loop
 from azure.ai.evaluation._common.utils import nltk_tokenize
 
@@ -13,6 +13,11 @@ def __init__(self, alpha: float = 0.9, beta: float = 3.0, gamma: float = 0.5):
         self._beta = beta
         self._gamma = gamma
 
+        try:
+            nltk.find('corpora/wordnet.zip')
+        except LookupError:
+            nltk.download('wordnet')
+
     async def __call__(self, *, ground_truth: str, answer: str, **kwargs):
         reference_tokens = nltk_tokenize(ground_truth)
         hypothesis_tokens = nltk_tokenize(answer)

sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/evaluators/_rouge/_rouge.py

@@ -77,7 +77,6 @@ class RougeScoreEvaluator:
     """
 
     def __init__(self, rouge_type: RougeType):
-        self._rouge_type = rouge_type
         self._async_evaluator = _AsyncRougeScoreEvaluator(rouge_type)
 
     def __call__(self, *, ground_truth: str, answer: str, **kwargs):