tuto(custom): custom operators tutorial supports older DPF versions

[PProfizi]

Fixes retro of the tutorial with 252 and below.
https://github.com/ansys/pydpf-core/actions/runs/16499565827/job/46654081741#step:8:46

[codecov]

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
29940	2	29938	3874

View the top 3 failed test(s) by shortest run time

test_remote_operator/test_remote_operator.py::test_connect_remote_data_to_operator

Stack Traces | 1.25s run time

simple_bar = '.../pydpf-core/pydpf-core/.tox.../test-remote_operator/lib/python3.10.../examples/result_files/ASimpleBar.rst'

    @pytest.mark.skipif(
        not conftest.SERVERS_VERSION_GREATER_THAN_OR_EQUAL_TO_4_0,
        reason="Connecting data from different servers is " "supported starting server version 4.0",
    )
    def test_connect_remote_data_to_operator(simple_bar):
        data_sources1 = core.DataSources(simple_bar)
>       op2 = ops.result.displacement(data_sources=data_sources1, server=local_servers[0])

test_remote_operator/test_remote_operator.py:66: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
.tox.../test-remote_operator/lib/python3.10.../operators/result/displacement.py:118: in __init__
    super().__init__(name="U", config=config, server=server)
.tox.../test-remote_operator/lib/python3.10.../dpf/core/dpf_operator.py:156: in __init__
    self._internal_obj = self._api.operator_new_on_client(
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

operatorName = 'U'
client = <ansys.dpf.core.server_types.GrpcClient object at 0x7efcaa014760>

    @staticmethod
    def operator_new_on_client(operatorName, client):
    	errorSize = ctypes.c_int(0)
    	sError = ctypes.c_wchar_p()
    	res = capi.dll.Operator_new_on_client(utils.to_char_ptr(operatorName), client._internal_obj if client is not None else None, ctypes.byref(utils.to_int32(errorSize)), ctypes.byref(sError))
    	if errorSize.value != 0:
>   		raise errors.DPFServerException(sError.value)
E     ansys.dpf.gate.errors.DPFServerException: a 'service is currently unavailable' error occurred: failed to connect to all addresses

.tox.../test-remote_operator/lib/python3.10.../gate/generated/operator_capi.py:781: DPFServerException

test_server\test_server.py::test_server::TestServerConfigs::test_start_shutdown_start[grpc]

Stack Traces | 3.19s run time

self = <test_server.TestServerConfigs object at 0x0000021BF033DF90>
server_config = <ansys.dpf.core.server_factory.ServerConfig object at 0x0000021BF0314BB0>

    def test_start_shutdown_start(self, server_config):
        set_server_configuration(server_config)
        # print(dpf.core.SERVER_CONFIGURATION)
        server = start_local_server(timeout=20)
        server.shutdown()
>       server = start_local_server(timeout=20)

test_server\test_server.py:148: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
.tox\test-server\lib\site-packages\ansys\dpf\core\server.py:255: in start_local_server
    server = server_type(
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:852: in __init__
    self._check_first_call(timeout=timeout - (time.time() - start_time))  # Pass remaining time
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:871: in _check_first_call
    raise e
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:865: in _check_first_call
    _ = self.version
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:888: in version
    api.data_processing_get_server_version_on_client(self.client, major, minor)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

client = <ansys.dpf.core.server_types.GrpcClient object at 0x0000021BF5924790>
major = <ansys.dpf.gate.integral_types.MutableInt32 object at 0x0000021BF5927A90>
minor = <ansys.dpf.gate.integral_types.MutableInt32 object at 0x0000021BF5927A60>

    @staticmethod
    def data_processing_get_server_version_on_client(client, major, minor):
    	errorSize = ctypes.c_int(0)
    	sError = ctypes.c_wchar_p()
    	res = capi.dll.DataProcessing_getServerVersion_on_client(client._internal_obj if client is not None else None, ctypes.byref(utils.to_int32(major)), ctypes.byref(utils.to_int32(minor)), ctypes.byref(utils.to_int32(errorSize)), ctypes.byref(sError))
    	if errorSize.value != 0:
>   		raise errors.DPFServerException(sError.value)
E     ansys.dpf.gate.errors.DPFServerException: a 'cancelled' error occurred: CANCELLED

.tox\test-server\lib\site-packages\ansys\dpf\gate\generated\data_processing_capi.py:498: DPFServerException

test_server\test_server.py::test_server::test_start_after_shutting_down_server

Stack Traces | 9.12s run time

@pytest.mark.skipif(
        not SERVERS_VERSION_GREATER_THAN_OR_EQUAL_TO_4_0,
        reason="Not existing in version lower than 4.0",
    )
    @pytest.mark.skipif(running_docker, reason="Unstable on Docker")
    def test_start_after_shutting_down_server():
        remote_server = start_local_server(
            config=dpf.core.AvailableServerConfigs.GrpcServer, as_global=False
        )
        remote_server.shutdown()
    
        time.sleep(2.0)
    
>       remote_server = start_local_server(
            config=dpf.core.AvailableServerConfigs.GrpcServer, as_global=False
        )

test_server\test_server.py:338: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
.tox\test-server\lib\site-packages\ansys\dpf\core\server.py:255: in start_local_server
    server = server_type(
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:852: in __init__
    self._check_first_call(timeout=timeout - (time.time() - start_time))  # Pass remaining time
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:871: in _check_first_call
    raise e
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:865: in _check_first_call
    _ = self.version
.tox\test-server\lib\site-packages\ansys\dpf\core\server_types.py:888: in version
    api.data_processing_get_server_version_on_client(self.client, major, minor)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

client = <ansys.dpf.core.server_types.GrpcClient object at 0x0000021BF5927100>
major = <ansys.dpf.gate.integral_types.MutableInt32 object at 0x0000021BF5924E20>
minor = <ansys.dpf.gate.integral_types.MutableInt32 object at 0x0000021BF5926E30>

    @staticmethod
    def data_processing_get_server_version_on_client(client, major, minor):
    	errorSize = ctypes.c_int(0)
    	sError = ctypes.c_wchar_p()
    	res = capi.dll.DataProcessing_getServerVersion_on_client(client._internal_obj if client is not None else None, ctypes.byref(utils.to_int32(major)), ctypes.byref(utils.to_int32(minor)), ctypes.byref(utils.to_int32(errorSize)), ctypes.byref(sError))
    	if errorSize.value != 0:
>   		raise errors.DPFServerException(sError.value)
E     ansys.dpf.gate.errors.DPFServerException: a 'cancelled' error occurred: CANCELLED

.tox\test-server\lib\site-packages\ansys\dpf\gate\generated\data_processing_capi.py:498: DPFServerException

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[github-actions]

The documentation for this pull request will be available at https://dpf.docs.pyansys.com/pull/2472. Please allow some time for the documentation to be deployed.

[github-actions]

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