synthtize comparison for MOnumber

mapytex/calculus/core/MO/mo.py

@@ -10,6 +10,7 @@ from decimal import Decimal
 from .exceptions import MOError
 from ..coroutine import coroutine, STOOOP
 from ..renders import tree2txt, tree2tex
+from functools import total_ordering
 
 
 __all__ = ["moify", "MO", "MOstr"]
@@ -116,6 +117,7 @@ class MO(object):
             return str(self.value)
 
 
+@total_ordering
 class MOnumber(MO):
 
     """ Base number math object (int or Decimal) """
@@ -266,27 +268,6 @@ class MOnumber(MO):
         except AttributeError:
             return self.value < other
 
-    def __le__(self, other):
-        """ <= a MOnumber """
-        try:
-            return self.value <= other.value
-        except AttributeError:
-            return self.value <= other
-
-    def __gt__(self, other):
-        """ > a MOnumber """
-        try:
-            return self.value > other.value
-        except AttributeError:
-            return self.value > other
-
-    def __ge__(self, other):
-        """ >= a MOnumber """
-        try:
-            return self.value >= other.value
-        except AttributeError:
-            return self.value >= other
-
     def __hash__(self):
         return self.value.__hash__()