From: Amaury Forgeot d'Arc <amauryfa@gmail.com>
Date: Tue, 8 Apr 2008 21:51:57 +0000 (+0000)
Subject: Prevent an error when inspect.isabstract() is called with something else than a new... 
X-Git-Tag: v2.6a3~240
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=24f3c5c646d26350e4de6a878fed3e6db1e4ff9a;p=python

Prevent an error when inspect.isabstract() is called with something else than a new-style class.
---

diff --git a/Lib/inspect.py b/Lib/inspect.py
index 3f9199fe6c..b492514e4f 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -247,7 +247,7 @@ def isgenerator(object):
 
 def isabstract(object):
     """Return true if the object is an abstract base class (ABC)."""
-    return object.__flags__ & TPFLAGS_IS_ABSTRACT
+    return isinstance(object, type) and object.__flags__ & TPFLAGS_IS_ABSTRACT
 
 def getmembers(object, predicate=None):
     """Return all members of an object as (name, value) pairs sorted by name.