1 files changed, 4 insertions, 1 deletions
diff --git a/coverage/context.py b/coverage/context.py
index f167de36..c3416208 100644
--- a/coverage/context.py
+++ b/coverage/context.py
@@ -31,7 +31,10 @@ def qualname_from_frame(frame):
     if method is None:
         return fname
 
-    func = method.__func__
+    func = getattr(method, '__func__', None)
+    if func is None:
+        return fname
+
     if hasattr(func, '__qualname__'):
         qname = func.__qualname__
     else: