Update app.py

app.py

@@ -4,12 +4,12 @@ from difflib import SequenceMatcher
 import PyPDF2
 
 # Aprire il documento PDF e estrarre il testo
-pdf_file = open('bro.pdf', 'rb')
-pdf_reader = PyPDF2.PdfReader(pdf_file)
-document_text = ""
-for i in range(len(reader.pages)):
-    page = pdf_reader.getPage(i)
-    document_text += page.extractText()
+with open('bro.pdf', 'rb') as pdf_file:
+    pdf_reader = PyPDF2.PdfFileReader(pdf_file)
+    document_text = ""
+    for i in range(pdf_reader.getNumPages()):
+        page = pdf_reader.getPage(i)
+        document_text += page.extractText()
 
 question_input = gr.inputs.Textbox(label="Inserisci la tua domanda qui")