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-rw-r--r--lib/sqlalchemy/attributes.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/sqlalchemy/attributes.py b/lib/sqlalchemy/attributes.py
index d1b0738de..6424c9d79 100644
--- a/lib/sqlalchemy/attributes.py
+++ b/lib/sqlalchemy/attributes.py
@@ -72,6 +72,11 @@ class SmartProperty(object):
h.append_nohistory(value)
class ManagedAttribute(object):
+ """base class for a "managed attribute", which is attached to individual instances
+ of a class mapped to the keyname of the property, inside of a dictionary which is
+ attached to the object via the propertyname "_managed_attributes". Attribute access
+ which occurs through the SmartProperty property object ultimately calls upon
+ ManagedAttribute objects associated with the instance via this dictionary."""
def __init__(self, obj, key):
self.__obj = weakref.ref(obj)
self.key = key