tried to fix end start bug in def summarize_text

app.py

@@ -19,24 +19,17 @@ def extract_text(pdf_file):
 
     
 # Function to summarize text
-# Defines a function to summarize the extracted text using pszemraj/led-base-book-summary    
+# Defines a function to summarize the extracted text using facebook/bart-large-cnn    
 def summarize_text(text):
-      sentences = text.split(". ")
-
-      # Find the start index of the Abstract section
-      for i, sentence in enumerate(sentences):
-          if "Abstract" in sentence:
-              start = i + 1
-
-      # Find the end index (6 sentences after start)        
-      end = start + 6  
-
-      if start is not None and end is not None:  
-          # Join the sentences from start to end into the abstract 
-          abstract = ". ".join(sentences[start:end+1])  
-
-      else:                                           
-          return("Abstract section not found")
+    sentences = text.split(". ")
+    for i, sentence in enumerate(sentences):
+        if "Abstract" in sentence:
+            start = i + 1
+            end = start + 6
+            break
+    abstract = ". ".join(sentences[start:end+1]) 
+    else:
+        return("Abstract section not found")
 
   # Load BART model & tokenizer
     tokenizer = AutoTokenizer.from_pretrained("pszemraj/led-base-book-summary")