def buttonHandler(update: Update, context: CallbackContext):
query = context.callback_query
data = query.data
#print("query data = " + data)
if data == "Esc":
chat_id = context.callback_query.message.chat_id
message_id = context.callback_query.message.message_id
update.deleteMessage(chat_id=chat_id, message_id=message_id)
elif data.startswith("iscriviti"):
printYears(context)
elif data.startswith("disiscriviti"):
printUnsubscribe(context)
elif data.startswith("mie_iscrizioni"):
subscribed_subject_text_list(context)
else:
checkIscriviti(context, data)
checkDisiscriviti(context, data)
