Update app.py

app.py

@@ -144,10 +144,11 @@ def answer_question(prompt):
 
 
 def process_inputs(llm, file, relevance, diversity, email):
+    # Check if file is uploaded
     if file is not None:
         # Read questions from the uploaded Excel file
         try:
-            df = pd.read_excel(file.name)
+            df = pd.read_excel(file.name, engine='openpyxl')
         except Exception as e:
             return f"Failed to read Excel file: {e}"
 
@@ -177,19 +178,17 @@ def process_inputs(llm, file, relevance, diversity, email):
     message['Subject'] = subject
     message.attach(MIMEText(body, 'plain'))
 
-    attachment = open(csv_file, "rb")
-    part = MIMEBase('application', 'octet-stream')
-    part.set_payload((attachment).read())
-    encoders.encode_base64(part)
-    part.add_header('Content-Disposition', f"attachment; filename= questions.csv")
-    message.attach(part)
-
-    server = smtplib.SMTP('smtp.gmail.com', 587)
-    server.starttls()
-    server.login(sender_email, sender_password)
-    text = message.as_string()
-    server.sendmail(sender_email, receiver_email, text)
-    server.quit()
+    with open(csv_file, "rb") as attachment:
+        part = MIMEBase('application', 'octet-stream')
+        part.set_payload(attachment.read())
+        encoders.encode_base64(part)
+        part.add_header('Content-Disposition', f"attachment; filename= questions.csv")
+        message.attach(part)
+
+    with smtplib.SMTP('smtp.gmail.com', 587) as server:
+        server.starttls()
+        server.login(sender_email, sender_password)
+        server.sendmail(sender_email, receiver_email, message.as_string())
 
     return "Submitted"