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-rw-r--r--gr-zeromq/python/zeromq/rpc_manager.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/gr-zeromq/python/zeromq/rpc_manager.py b/gr-zeromq/python/zeromq/rpc_manager.py
index e50a3d62fb..eb6fa86707 100644
--- a/gr-zeromq/python/zeromq/rpc_manager.py
+++ b/gr-zeromq/python/zeromq/rpc_manager.py
@@ -93,9 +93,10 @@ class rpc_manager():
if self.interfaces.has_key(id_str):
callback_func = self.interfaces.get(id_str)
if not args == None:
- return(callback_func(args))
+ # use unpacking or splat operator * to unpack argument list
+ return(callback_func(*args))
else:
return(callback_func())
else:
print "[RPC] ERROR: id_str not found"
- return 0
+ return None