diff -r 1d9031b6cb7e -r c8d3af9c7e65 contrib/perf.py
--- a/contrib/perf.py	Wed Aug 07 20:12:07 2019 +0200
+++ b/contrib/perf.py	Mon Aug 19 10:38:38 2019 -0700
@@ -132,7 +132,7 @@
         _maxint = sys.maxsize  # per py3 docs for replacing maxint
     else:
         _maxint = sys.maxint
-except (ImportError, AttributeError):
+except (NameError, ImportError, AttributeError):
     import inspect
     getargspec = inspect.getargspec
     _byteskwargs = identity
@@ -144,11 +144,11 @@
 try:
     # 4.7+
     queue = pycompat.queue.Queue
-except (AttributeError, ImportError):
+except (NameError, AttributeError, ImportError):
     # <4.7.
     try:
         queue = pycompat.queue
-    except (AttributeError, ImportError):
+    except (NameError, AttributeError, ImportError):
         queue = util.queue
 
 try: