Update app.py

app.py

@@ -49,6 +49,7 @@ def signup():
         phone = request.form.get("phone")
         email = request.form.get("email")
         password = request.form.get("password")
+        referral_code = generate_referral_code()
         try:
             sf.Customer_Login__c.create({
                 "Name": name,