Update docs

daizutabi · Jun 28, 2020 · 3a599be · 3a599be
1 parent 2b5150d
commit 3a599be
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/examples/appendix/abc.py b/examples/appendix/abc.py
@@ -1,7 +1,7 @@
-from abc import ABC, abstractmethod
+from abc import ABCMeta, abstractmethod
 
 
-class AbstractMethodTypeExample(ABC):
+class AbstractMethodTypeExample(object, metaclass=ABCMeta):  # or (abc.ABC)
     """Abstract class."""
 
     def method(self):