From ffc64d7975aba80256c2be4293d45a87ff4d60d9 Mon Sep 17 00:00:00 2001
From: Vasileios Karakasis <karakasis@cscs.ch>
Date: Sun, 14 Jun 2020 01:16:43 +0200
Subject: [PATCH] Fix AttributeError when pipeline hooks are defined in a mixin
 class

---
 reframe/core/meta.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/reframe/core/meta.py b/reframe/core/meta.py
index 02e09f43b8..fc1786b3ea 100644
--- a/reframe/core/meta.py
+++ b/reframe/core/meta.py
@@ -48,6 +48,9 @@ def __init__(cls, name, bases, namespace, **kwargs):
 
         for v in namespace.values():
             for b in bases:
+                if not hasattr(b, '_final_methods'):
+                    continue
+
                 if callable(v) and v.__name__ in b._final_methods:
                     msg = (f"'{cls.__qualname__}.{v.__name__}' attempts to "
                            f"override final method "