Merge pull request #127 from tiqi-group/feature/ignore_coroutine

Skip coroutines with arguments instead of raising an exception

src/pydase/data_service/task_manager.py

@@ -21,10 +21,6 @@ if TYPE_CHECKING:
 logger = logging.getLogger(__name__)
 
 
-class TaskDefinitionError(Exception):
-    pass
-
-
 class TaskStatus(Enum):
     RUNNING = "running"
 
@@ -107,12 +103,13 @@ class TaskManager:
             method = getattr(self.service, name)
             if inspect.iscoroutinefunction(method):
                 if function_has_arguments(method):
-                    raise TaskDefinitionError(
-                        "Asynchronous functions (tasks) should be defined without "
-                        f"arguments. The task '{method.__name__}' has at least one "
-                        "argument. Please remove the argument(s) from this function to "
-                        "use it."
+                    logger.info(
+                        "Async function %a is defined with at least one argument. If "
+                        "you want to use it as a task, remove the argument(s) from the "
+                        "function definition.",
+                        method.__name__,
                     )
+                    continue
 
                 # create start and stop methods for each coroutine
                 setattr(

src/pydase/observer_pattern/observable/observable_object.py

@@ -1,34 +1,37 @@
+from __future__ import annotations
+
 import logging
 import weakref
 from abc import ABC, abstractmethod
-from collections.abc import Iterable
 from typing import TYPE_CHECKING, Any, ClassVar, SupportsIndex
 
 from pydase.utils.helpers import parse_serialized_key
 
 if TYPE_CHECKING:
+    from collections.abc import Iterable
+
     from pydase.observer_pattern.observer.observer import Observer
 
 logger = logging.getLogger(__name__)
 
 
 class ObservableObject(ABC):
-    _list_mapping: ClassVar[dict[int, weakref.ReferenceType["_ObservableList"]]] = {}
-    _dict_mapping: ClassVar[dict[int, weakref.ReferenceType["_ObservableDict"]]] = {}
+    _list_mapping: ClassVar[dict[int, weakref.ReferenceType[_ObservableList]]] = {}
+    _dict_mapping: ClassVar[dict[int, weakref.ReferenceType[_ObservableDict]]] = {}
 
     def __init__(self) -> None:
         if not hasattr(self, "_observers"):
-            self._observers: dict[str, list["ObservableObject | Observer"]] = {}
+            self._observers: dict[str, list[ObservableObject | Observer]] = {}
 
     def add_observer(
-        self, observer: "ObservableObject | Observer", attr_name: str = ""
+        self, observer: ObservableObject | Observer, attr_name: str = ""
     ) -> None:
         if attr_name not in self._observers:
             self._observers[attr_name] = []
         if observer not in self._observers[attr_name]:
             self._observers[attr_name].append(observer)
 
-    def _remove_observer(self, observer: "ObservableObject", attribute: str) -> None:
+    def _remove_observer(self, observer: ObservableObject, attribute: str) -> None:
         if attribute in self._observers:
             self._observers[attribute].remove(observer)
 

tests/data_service/test_data_service.py

@@ -7,7 +7,6 @@ import pytest
 from pydase import DataService
 from pydase.data_service.data_service_observer import DataServiceObserver
 from pydase.data_service.state_manager import StateManager
-from pydase.data_service.task_manager import TaskDefinitionError
 from pydase.utils.decorators import FunctionDefinitionError, frontend
 from pytest import LogCaptureFixture
 
@@ -37,7 +36,8 @@ def test_unexpected_type_change_warning(caplog: LogCaptureFixture) -> None:
 
 
 def test_basic_inheritance_warning(caplog: LogCaptureFixture) -> None:
-    class SubService(DataService): ...
+    class SubService(DataService):
+        ...
 
     class SomeEnum(Enum):
         HI = 0
@@ -57,9 +57,11 @@ def test_basic_inheritance_warning(caplog: LogCaptureFixture) -> None:
         def name(self) -> str:
             return self._name
 
-        def some_method(self) -> None: ...
+        def some_method(self) -> None:
+            ...
 
-        async def some_task(self) -> None: ...
+        async def some_task(self) -> None:
+            ...
 
     ServiceClass()
 
@@ -118,14 +120,7 @@ def test_protected_and_private_attribute_warning(caplog: LogCaptureFixture) -> N
     ) not in caplog.text
 
 
-def test_exposing_methods() -> None:
-    class ClassWithTask(pydase.DataService):
-        async def some_task(self, sleep_time: int) -> None:
-            pass
-
-    with pytest.raises(TaskDefinitionError):
-        ClassWithTask()
-
+def test_exposing_methods(caplog: LogCaptureFixture) -> None:
     with pytest.raises(FunctionDefinitionError):
 
         class ClassWithMethod(pydase.DataService):
@@ -133,6 +128,18 @@ def test_exposing_methods() -> None:
             def some_method(self, *args: Any) -> str:
                 return "some method"
 
+    class ClassWithTask(pydase.DataService):
+        async def some_task(self, sleep_time: int) -> None:
+            pass
+
+    ClassWithTask()
+
+    assert (
+        "Async function 'some_task' is defined with at least one argument. If you want "
+        "to use it as a task, remove the argument(s) from the function definition."
+        in caplog.text
+    )
+
 
 def test_dynamically_added_attribute(caplog: LogCaptureFixture) -> None:
     class MyService(DataService):

tests/observer_pattern/observer/test_property_observer.py

@@ -16,6 +16,7 @@ def test_inherited_property_dependency_resolution() -> None:
         _name = "DerivedObservable"
 
     class MyObserver(PropertyObserver):
-        def on_change(self, full_access_path: str, value: Any) -> None: ...
+        def on_change(self, full_access_path: str, value: Any) -> None:
+            ...
 
     assert MyObserver(DerivedObservable()).property_deps_dict == {"_name": ["name"]}

tests/utils/serialization/test_serializer.py

@@ -476,7 +476,8 @@ def test_derived_data_service_serialization() -> None:
         def name(self, value: str) -> None:
             self._name = value
 
-    class DerivedService(BaseService): ...
+    class DerivedService(BaseService):
+        ...
 
     base_service_serialization = dump(BaseService())
     derived_service_serialization = dump(DerivedService())