Update app.py

app.py

@@ -20,8 +20,8 @@ def summarize(text):
         writer.writerow(fields)
     
     lines = "(lines)"
-    f = open('input.csv',"r")
-    lines = f.readlines()
+    with open('input.csv',"r") as f:
+        lines = f.readlines()
         #print(lines)
             
     return "Summary: " + str(generated_summary) + "\n\n" + str(lines)