Merged revisions 68708 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r68708 | jesse.noller | 2009-01-17 20:45:38 -0600 (Sat, 17 Jan 2009) | 1 line

  Resolve issue 4449: AssertionError in mp_benchmarks.py
........

1 files changed, 10 insertions, 4 deletions

diff --git a/Lib/multiprocessing/sharedctypes.py b/Lib/multiprocessing/sharedctypes.py
index 0054ff1..76b5e94 100644
--- a/Lib/multiprocessing/sharedctypes.py
+++ b/Lib/multiprocessing/sharedctypes.py
@@ -69,9 +69,12 @@ def Value(typecode_or_type, *args, **kwds):
     if kwds:
         raise ValueError('unrecognized keyword argument(s): %s' % kwds.keys())
     obj = RawValue(typecode_or_type, *args)
-    if lock is None:
+    if lock is False:
+        return obj
+    if lock in (True, None):
         lock = RLock()
-    assert hasattr(lock, 'acquire')
+    if not hasattr(lock, 'acquire'):
+        raise AttributeError("'%r' has no method 'acquire'" % lock)
     return synchronized(obj, lock)
 
 def Array(typecode_or_type, size_or_initializer, **kwds):
@@ -82,9 +85,12 @@ def Array(typecode_or_type, size_or_initializer, **kwds):
     if kwds:
         raise ValueError('unrecognized keyword argument(s): %s' % kwds.keys())
     obj = RawArray(typecode_or_type, size_or_initializer)
-    if lock is None:
+    if lock is False:
+        return obj
+    if lock in (True, None):
         lock = RLock()
-    assert hasattr(lock, 'acquire')
+    if not hasattr(lock, 'acquire'):
+        raise AttributeError("'%r' has no method 'acquire'" % lock)
     return synchronized(obj, lock)
 
 def copy(obj):