signal: existing signal not discovered when some inheritance exists.

[poautran]

In GitLab by @payno on Dec 16, 2025, 15:18 GMT+1:

when defining Inputs from a mother class it seems they are discovered by _get_signal_ewoks_dict

class MyWidget(TomwerWidgetDataInputOneThreadPerRun, ewokstaskclass=...):

    class Inputs:
        # redefine the input to allow multiple and default
        data = Input(name="data", type=...)
    ...
    @Inputs.data
    def _setData(self, ...):
        ...

works as expected -> the signal will not be overwritten and the @Inputs.data will be triggered when a new value is emitted.

But when we add one level of inheritance _setData is never triggered and the signal is overwritten by ewoksorange.

class InputMixIn:
    class Inputs:
        # redefine the input to allow multiple and default
        data = Input(name="data", type=...)
    ...
    @Inputs.data
    def _setData(self, ...):
        ...

class MyWidget(TomwerWidgetDataInputOneThreadPerRun, InputMixIn, ewokstaskclass=...):

Assignees: @payno

Migrated from GitLab: https://gitlab.esrf.fr/workflow/ewoks/ewoksorange/-/issues/75

[poautran]

In GitLab by @payno on Dec 16, 2025, 15:20 GMT+1:

Might come directly from from orangewidget.utils.signals import getsignals as _native_getsignals...

[poautran]

In GitLab by @payno on Dec 16, 2025, 15:32 GMT+1:

more likely this comes from _get_signal_container.

[poautran]

In GitLab by @payno on Dec 16, 2025, 16:52 GMT+1:

mentioned in commit tomotools/tomwer@81016a0c83af9129dc83c9f760cb272b1fba9841

[poautran]

In GitLab by @woutdenolf on Dec 16, 2025, 18:22 GMT+1:

I tried reproducing like this

from ewoksorange.gui.owwidgets.nothread import OWEwoksWidgetNoThread
from ewokscore.tests.examples.tasks.sumtask import SumTask
from ewoksorange.gui.orange_utils.signals import Input
from ewoksorange.tests.utils import execute_task


class InputMixIn:
    class Inputs:
        a = Input(name="A", type=int)

    @Inputs.a
    def _setA(self, value):
        print("ok")


class OWSumTask(OWEwoksWidgetNoThread, InputMixIn, ewokstaskclass=SumTask):
    pass


execute_task(OWSumTask, inputs={"a": 10})

But then I got this issue: https://gitlab.esrf.fr/workflow/ewoks/ewoksorange/-/issues/76.

[poautran]

In GitLab by @payno on Dec 16, 2025, 18:27 GMT+1:

mentioned in merge request tomotools/tomwer!1266

[poautran]

In GitLab by @payno on Dec 16, 2025, 18:29 GMT+1:

mentioned in commit tomotools/tomwer@78a8fea5c76c63261aa3ff1d74712bd510a31f15

[poautran]

In GitLab by @payno on Dec 17, 2025, 05:10 GMT+1:

mentioned in commit tomotools/tomwer@a953a116de754a32f3d970994af9d6d29b61bd58

[poautran]

In GitLab by @payno on Jan 13, 2026, 19:26 GMT+1:

mentioned in commit tomotools/tomwer@349a5871b51dd6423b010d0aed914112b66f550a