From 07d907d165a1519cf2d812add565d7757f453f2c Mon Sep 17 00:00:00 2001
From: noembryo <noembryo@gmail.com>
Date: Thu, 2 Nov 2023 12:41:01 +0200
Subject: [PATCH] Initial commit

---
 nodes.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nodes.py b/nodes.py
index 066cc4c..63a96f6 100644
--- a/nodes.py
+++ b/nodes.py
@@ -74,6 +74,9 @@ class PromptTermList:
             return
         label = lines[0][6:]
         value = lines[1][6:]
+        if label == "None":
+            print(f'{self.name}: The label "{label}" cannot be changed!')
+            return
         if not value:
             del self.data[label]
         else: