Forget to commit to master the lock >.>

lock.py

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+from gpiozero import LED
+import shelve
+
+led = LED(17)
+
+def state(current : bool = None):
+    if current != None:
+        with shelve.open("Settings.conf") as settings:
+            settings["state"] = current
+    else:
+        with shelve.open("Settings.conf") as settings:
+            return settings["state"]
+
+
+def unlock():
+    led.on()
+    state(True)
+
+def lock():
+    led.off()
+    state(False)
+
+def switch():
+    if state():
+        lock()
+    else:
+        unlock()