- Added support for the ``dict.pop()`` and ``dict.popitem()`` methods

to the :class:`.mutable.MutableDict` class.
fixes #3605

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/sqlalchemy/ext/mutable.py b/lib/sqlalchemy/ext/mutable.py
index 501b18f39..88b653f60 100644
--- a/lib/sqlalchemy/ext/mutable.py
+++ b/lib/sqlalchemy/ext/mutable.py
@@ -658,6 +658,16 @@ class MutableDict(Mutable, dict):
         dict.update(self, *a, **kw)
         self.changed()
 
+    def pop(self, key):
+        result = dict.pop(self, key)
+        self.changed()
+        return result
+
+    def popitem(self):
+        result = dict.popitem(self)
+        self.changed()
+        return result
+
     def clear(self):
         dict.clear(self)
         self.changed()