Index: leahi_dialin/utils/base.py
===================================================================
diff -u -r18c90a1b2b6c7339bdd192a2d2fac32f2b8a35df -r6d104d3185ac3ed7c18c97ecdc13fd59bf53a8d1
--- leahi_dialin/utils/base.py	(.../base.py)	(revision 18c90a1b2b6c7339bdd192a2d2fac32f2b8a35df)
+++ leahi_dialin/utils/base.py	(.../base.py)	(revision 6d104d3185ac3ed7c18c97ecdc13fd59bf53a8d1)
@@ -15,31 +15,17 @@
 ############################################################################
 import logging
 import os
-from abc import ABC, abstractmethod
 from datetime import datetime
-from enum import Enum
 from threading import Timer
 
+
 INTERVAL_1s = 1
 INTERVAL_5s = 5
 INTERVAL_10s = 10
 INTERVAL_60s = 60
 
-class AbstractObserver(ABC):
-    """
-    Publicly accessible parent class for all observers.
 
-    The update method will receive data when data is made available
-    """
 
-    @abstractmethod
-    def update(self):
-        """
-        Attach an observer
-        """
-        pass
-
-
 class _FauxLogger:
 
     def __init__(self, printing_enabled=False):
@@ -206,31 +192,6 @@
         return "{0}{1}{2}".format(path, i, ext)
 
 
-class AbstractSubSystem:
-
-    @abstractmethod
-    def __init__(self):
-        """
-        Initialization function for the sub system
-        # The abstract base class requires all abstract methods are overridden by children classes
-        """
-        self._observers = []
-        self._datetime_fmt = "%m.%d.%Y_%I.%M.%S.%f"
-        pass
-
-    def attach(self, observer: AbstractObserver):
-        """
-        Attach an observer so it is updated upon published events
-        """
-        self._observers.append(observer)
-
-    def detach(self, observer: AbstractObserver):
-        """
-        Detach an observer
-        """
-        self._observers.remove(observer)
-
-
 def publish(keys):
     """
     Decorator that accepts a list of variable names to publish
@@ -267,24 +228,6 @@
     return _decorator
 
 
-class DialinEnum(Enum):
-
-    @classmethod
-    def has_value(cls, value):
-        return value in cls._value2member_map_
-
-
-class AlarmEnum(Enum):
-    def __init__(self, *args):
-        cls = self.__class__
-        if any(self.value == member.value for member in cls):
-            raise ValueError("aliases not allowed:  %r --> %r" % (self.name, cls(self.value).name))
-
-    @classmethod
-    def has_value(cls, value):
-        return value in cls._value2member_map_
-
-
 class IntervalTimer(object):
     """
     A class object that is used to execute a function on a timed interval.