Fix NLTK punkt setup and remove redundant downloads

analyze_aspects.py

@@ -12,6 +12,11 @@ import nltk
 from transformers import pipeline
 from collections import defaultdict
 import matplotlib.pyplot as plt
+import os
+
+nltk.download('punkt', download_dir='/home/user/nltk_data')
+nltk.data.path.append('/home/user/nltk_data')
+os.environ['NLTK_DATA'] = '/home/user/nltk_data'
 
 def visualize_aspects(aspect_results: dict[str, list[float]], output_dir: Path, filename: str = "sentiment_aspekte.png"):
     output_dir.mkdir(parents=True, exist_ok=True)
@@ -118,11 +123,7 @@ def analyze_quickwin(db_path: Path, isbn: str, device: int = -1, languages: list
             continue
 
         logger.info(f"Review ID {review_id} ({lang}) wird verarbeitet.")
-        import os
-        nltk.download('punkt')
-        nltk.data.path.append("/home/user/nltk_data")
-        os.environ["NLTK_DATA"] = "/home/user/nltk_data"
-
+       
         lang_map = {'de': 'german', 'en': 'english'}
         sentences = sent_tokenize(text, language=lang_map.get(lang, 'english'))