fix version

Author: cbellot000

src/ansys/dpf/core/data_sources.py

@@ -680,6 +680,7 @@ def register_namespace(self, result_key: str, namespace: str):
         """
         self._api.data_sources_register_namespace(self, result_key, namespace)
 
+    @version_requires("7.0")
     def namespace(self, result_key: str) -> str:
         """
         Return the namespace associated to a result_key. The namespace identifies to which operator plugin a call should be delegated to.

tests/test_datasources.py

@@ -176,6 +176,7 @@ def test_register_namespace(allkindofcomplexity, server_type):
         assert op.eval() is not None
 
 
+@conftest.raises_for_servers_version_under("7.0")
 def test_namespace(allkindofcomplexity, server_type):
     data_sources = dpf.core.DataSources(allkindofcomplexity, server=server_type)
     assert data_sources.namespace(data_sources.result_key) == "mapdl"