meta.__abstractmethods__: explicitly check if __isabstractmethod__ is True

Author: userzimmermann

modeled/meta.py

@@ -174,7 +174,7 @@ def abcnames():
                 obj = getattr(cls, name, None)
                 if obj is None:
                     continue
-                if getattr(obj, '__isabstractmethod__', False):
+                if getattr(obj, '__isabstractmethod__', False) is True:
                     yield name
 
         return tuple(abcnames())