feat: Add ruff rules for comprehensions (C4) (#3958)

Add ruff rules for comprehensions (C4)

src/backend/base/langflow/base/io/chat.py

@@ -27,7 +27,7 @@ class ChatComponent(Component):
         if hasattr(self, "_event_manager") and self._event_manager and stored_message.id:
             if not isinstance(message.text, str):
                 complete_message = self._stream_message(message, stored_message.id)
-                message_table = update_message(message_id=stored_message.id, message=dict(text=complete_message))
+                message_table = update_message(message_id=stored_message.id, message={"text": complete_message})
                 stored_message = Message(**message_table.model_dump())
                 self.vertex._added_message = stored_message
         self.status = stored_message

src/backend/base/langflow/components/deactivated/ShouldRunNext.py

@@ -18,7 +18,7 @@ class ShouldRunNextComponent(CustomComponent):
         error_message = ""
         for i in range(retries):
             result = chain.invoke(
-                dict(question=question, context=context, error_message=error_message),
+                {"question": question, "context": context, "error_message": error_message},
                 config={"callbacks": self.get_langchain_callbacks()},
             )
             if isinstance(result, BaseMessage):

src/backend/base/langflow/components/prompts/LangChainHubPrompt.py

@@ -65,7 +65,7 @@ class LangChainHubPromptComponent(Component):
                 full_template = full_template + "\n" + message.template
 
             # No need to reprocess if we have them already
-            if all(["param_" + custom_field in build_config for custom_field in custom_fields]):
+            if all("param_" + custom_field in build_config for custom_field in custom_fields):
                 return build_config
 
             # Easter egg: Show template in info popup

src/backend/base/langflow/components/toolkits/ComposioAPI.py

@@ -28,7 +28,7 @@ class ComposioAPIComponent(LCToolComponent):
         DropdownInput(
             name="app_names",
             display_name="App Name",
-            options=[app_name for app_name in App.__annotations__],
+            options=list(App.__annotations__),
             value="",
             info="The app name to use. Please refresh after selecting app name",
             refresh_button=True,
@@ -128,7 +128,7 @@ class ComposioAPIComponent(LCToolComponent):
     def _get_connected_app_names_for_entity(self) -> list[str]:
         toolset = self._build_wrapper()
         connections = toolset.client.get_entity(id=self.entity_id).get_connections()
-        return list(set(connection.appUniqueId for connection in connections))
+        return list({connection.appUniqueId for connection in connections})
 
     def _update_app_names_with_connected_status(self, build_config: dict) -> dict:
         connected_app_names = self._get_connected_app_names_for_entity()
@@ -157,7 +157,7 @@ class ComposioAPIComponent(LCToolComponent):
                 build_config["auth_status_config"]["value"] = self._check_for_authorization(
                     self._get_normalized_app_name()
                 )
-            all_action_names = [action_name for action_name in Action.__annotations__]
+            all_action_names = list(Action.__annotations__)
             app_action_names = [
                 action_name
                 for action_name in all_action_names

src/backend/base/langflow/graph/graph/base.py

@@ -1875,7 +1875,7 @@ class Graph:
 
     def __to_dict(self) -> dict[str, dict[str, list[str]]]:
         """Converts the graph to a dictionary."""
-        result: dict = dict()
+        result: dict = {}
         for vertex in self.vertices:
             vertex_id = vertex.id
             sucessors = [i.id for i in self.get_all_successors(vertex)]
@@ -1922,7 +1922,7 @@ class Graph:
         first_layer = vertices_layers[0]
         # save the only the rest
         self.vertices_layers = vertices_layers[1:]
-        self.vertices_to_run = {vertex_id for vertex_id in chain.from_iterable(vertices_layers)}
+        self.vertices_to_run = set(chain.from_iterable(vertices_layers))
         self.build_run_map()
         # Return just the first layer
         self._first_layer = first_layer

src/backend/base/langflow/logging/logger.py

@@ -56,7 +56,7 @@ class SizedLogBuffer:
         return len(self.buffer)
 
     def get_after_timestamp(self, timestamp: int, lines: int = 5) -> dict[int, str]:
-        rc = dict()
+        rc = {}
 
         self._rsemaphore.acquire()
         try:

src/backend/base/langflow/schema/schema.py

@@ -81,7 +81,7 @@ def get_message(payload):
 
 
 def build_output_logs(vertex, result) -> dict:
-    outputs: dict[str, OutputValue] = dict()
+    outputs: dict[str, OutputValue] = {}
     component_instance = result[0]
     for index, output in enumerate(vertex.outputs):
         if component_instance.status is None:

src/backend/base/langflow/services/database/models/folder/model.py

@@ -22,7 +22,7 @@ class Folder(FolderBase, table=True):  # type: ignore
 
     parent: Optional["Folder"] = Relationship(
         back_populates="children",
-        sa_relationship_kwargs=dict(remote_side="Folder.id"),
+        sa_relationship_kwargs={"remote_side": "Folder.id"},
     )
     children: list["Folder"] = Relationship(back_populates="parent")
     user_id: UUID | None = Field(default=None, foreign_key="user.id")

src/backend/base/langflow/services/database/models/transactions/crud.py

@@ -15,7 +15,7 @@ def get_transactions_by_flow_id(db: Session, flow_id: UUID, limit: int | None =
     )
 
     transactions = db.exec(stmt)
-    return [t for t in transactions]
+    return list(transactions)
 
 
 def log_transaction(db: Session, transaction: TransactionBase) -> TransactionTable:

src/backend/base/langflow/services/database/models/vertex_builds/crud.py

@@ -15,7 +15,7 @@ def get_vertex_builds_by_flow_id(db: Session, flow_id: UUID, limit: int | None =
     )
 
     builds = db.exec(stmt)
-    return [t for t in builds]
+    return list(builds)
 
 
 def log_vertex_build(db: Session, vertex_build: VertexBuildBase) -> VertexBuildTable:

src/backend/base/langflow/services/store/schema.py

@@ -43,7 +43,7 @@ class ListComponentResponse(BaseModel):
         # if so, return v else transform to TagResponse
         if not v:
             return v
-        if all(["id" in tag and "name" in tag for tag in v]):
+        if all("id" in tag and "name" in tag for tag in v):
             return v
         else:
             return [TagResponse(**tag.get("tags_id")) for tag in v if tag.get("tags_id")]

src/backend/base/langflow/services/telemetry/opentelemetry.py

@@ -74,7 +74,7 @@ class Metric:
         self.unit = unit
         self.labels = labels
         self.mandatory_labels = [label for label, required in labels.items() if required]
-        self.allowed_labels = [label for label in labels.keys()]
+        self.allowed_labels = list(labels.keys())
 
     def validate_labels(self, labels: Mapping[str, str]):
         """
@@ -109,7 +109,7 @@ class ThreadSafeSingletonMetaUsingWeakref(type):
 
 
 class OpenTelemetry(metaclass=ThreadSafeSingletonMetaUsingWeakref):
-    _metrics_registry: dict[str, Metric] = dict()
+    _metrics_registry: dict[str, Metric] = {}
 
     def _add_metric(self, name: str, description: str, unit: str, metric_type: MetricType, labels: dict[str, bool]):
         metric = Metric(name=name, description=description, type=metric_type, unit=unit, labels=labels)

src/backend/base/langflow/template/frontend_node/base.py

@@ -64,7 +64,7 @@ class FrontendNode(BaseModel):
     def process_base_classes(self, base_classes: list[str]) -> list[str]:
         """Removes unwanted base classes from the list of base classes."""
 
-        sorted_base_classes = sorted(list(set(base_classes)), key=lambda x: x.lower())
+        sorted_base_classes = sorted(set(base_classes), key=lambda x: x.lower())
         return sorted_base_classes
 
     @field_serializer("display_name")
@@ -123,7 +123,7 @@ class FrontendNode(BaseModel):
         input_names = [input_.name for input_ in self.template.fields]
         overlap = set(output_names).intersection(input_names)
         if overlap:
-            overlap_str = ", ".join(map(lambda x: f"'{x}'", overlap))
+            overlap_str = ", ".join(f"'{x}'" for x in overlap)
             raise ValueError(
                 f"There should be no overlap between input and output names. Names {overlap_str} are duplicated."
             )
@@ -151,10 +151,10 @@ class FrontendNode(BaseModel):
         input_overlap = set(input_names).intersection(attributes)
         error_message = ""
         if output_overlap:
-            output_overlap_str = ", ".join(map(lambda x: f"'{x}'", output_overlap))
+            output_overlap_str = ", ".join(f"'{x}'" for x in output_overlap)
             error_message += f"Output names {output_overlap_str} are reserved attributes.\n"
         if input_overlap:
-            input_overlap_str = ", ".join(map(lambda x: f"'{x}'", input_overlap))
+            input_overlap_str = ", ".join(f"'{x}'" for x in input_overlap)
             error_message += f"Input names {input_overlap_str} are reserved attributes."
 
     def add_base_class(self, base_class: str | list[str]) -> None:

src/backend/base/langflow/type_extraction/type_extraction.py

@@ -42,7 +42,7 @@ def extract_uniont_types_from_generic_alias(return_type: GenericAlias) -> list:
             _inner_arg
             for _type in return_type
             for _inner_arg in _type.__args__
-            if _inner_arg not in set((Any, type(None), type(Any)))
+            if _inner_arg not in {Any, type(None), type(Any)}
         ]
 
     return list(return_type.__args__)
@@ -81,7 +81,7 @@ def extract_union_types_from_generic_alias(return_type: GenericAlias) -> list:
             _inner_arg
             for _type in return_type
             for _inner_arg in _type.__args__
-            if _inner_arg not in set((Any, type(None), type(Any)))
+            if _inner_arg not in {Any, type(None), type(Any)}
         ]
 
     return list(return_type.__args__)

src/backend/base/pyproject.toml

@@ -148,7 +148,7 @@ exclude = ["langflow/alembic"]
 line-length = 120
 
 [tool.ruff.lint]
-select = ["E4", "E7", "E9", "F", "I", "UP"]
+select = ["C4", "E4", "E7", "E9", "F", "I", "UP"]
 
 [build-system]
 requires = ["hatchling"]