add support for abstract class and static methods #5867
diff --git a/Lib/abc.py b/Lib/abc.py
index 0f98036..a6c2dc4 100644
--- a/Lib/abc.py
+++ b/Lib/abc.py
@@ -25,6 +25,46 @@
return funcobj
+class abstractclassmethod(classmethod):
+ """A decorator indicating abstract classmethods.
+
+ Similar to abstractmethod.
+
+ Usage:
+
+ class C(metaclass=ABCMeta):
+ @abstractclassmethod
+ def my_abstract_classmethod(cls, ...):
+ ...
+ """
+
+ __isabstractmethod__ = True
+
+ def __init__(self, callable):
+ callable.__isabstractmethod__ = True
+ super().__init__(callable)
+
+
+class abstractstaticmethod(staticmethod):
+ """A decorator indicating abstract staticmethods.
+
+ Similar to abstractmethod.
+
+ Usage:
+
+ class C(metaclass=ABCMeta):
+ @abstractstaticmethod
+ def my_abstract_staticmethod(...):
+ ...
+ """
+
+ __isabstractmethod__ = True
+
+ def __init__(self, callable):
+ callable.__isabstractmethod__ = True
+ super().__init__(callable)
+
+
class abstractproperty(property):
"""A decorator indicating abstract properties.