added consistency constants to top level

cqlengine/__init__.py

@@ -12,3 +12,13 @@ __version__ = open(__cqlengine_version_path__, 'r').readline().strip()
 SizeTieredCompactionStrategy = "SizeTieredCompactionStrategy"
 LeveledCompactionStrategy = "LeveledCompactionStrategy"
 
+
+ANY = "ANY"
+ONE = "ONE"
+TWO = "TWO"
+THREE = "THREE"
+QUORUM = "QUORUM"
+LOCAL_QUORUM = "LOCAL_QUORUM"
+EACH_QUORUM = "EACH_QUORUM"
+ALL = "ALL"
+

cqlengine/models.py

@@ -7,7 +7,6 @@ from cqlengine.query import ModelQuerySet, DMLQuery, AbstractQueryableColumn
 from cqlengine.query import DoesNotExist as _DoesNotExist
 from cqlengine.query import MultipleObjectsReturned as _MultipleObjectsReturned
 
-
 class ModelDefinitionException(ModelException): pass
 
 
@@ -76,6 +75,7 @@ class TTLDescriptor(object):
     """
     def __get__(self, instance, model):
         if instance:
+            # instance method
             def ttl_setter(ts):
                 instance._ttl = ts
                 return instance