ref: Add ruff rules for blind exceptions (BLE) (#4076)

Add ruff rules for blind exceptions (BLE)

src/backend/base/langflow/__main__.py

@@ -10,6 +10,7 @@ import click
 import httpx
 import typer
 from dotenv import load_dotenv
+from httpx import HTTPError
 from multiprocess import cpu_count
 from multiprocess.context import Process
 from packaging import version as pkg_version
@@ -218,7 +219,7 @@ def run(
         if process is not None:
             process.terminate()
         sys.exit(0)
-    except Exception as e:
+    except Exception as e:  # noqa: BLE001
         logger.exception(e)
         sys.exit(1)
 
@@ -231,7 +232,10 @@ def wait_for_server_ready(host, port):
     while status_code != httpx.codes.OK:
         try:
             status_code = httpx.get(f"http://{host}:{port}/health").status_code
-        except Exception:
+        except HTTPError:
+            time.sleep(1)
+        except Exception:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error while waiting for the server to become ready.")
             time.sleep(1)
 
 

src/backend/base/langflow/api/health_check_router.py

@@ -48,16 +48,16 @@ async def health_check(
         stmt = select(Flow).where(Flow.id == uuid.uuid4())
         session.exec(stmt).first()
         response.db = "ok"
-    except Exception as e:
+    except Exception:  # noqa: BLE001
-        logger.exception(e)
+        logger.exception("Error checking database")
 
     try:
         chat = get_chat_service()
         await chat.set_cache("health_check", str(user_id))
         await chat.get_cache("health_check")
         response.chat = "ok"
-    except Exception as e:
+    except Exception:  # noqa: BLE001
-        logger.exception(e)
+        logger.exception("Error checking chat service")
 
     if response.has_error():
         raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail=response.model_dump())

src/backend/base/langflow/api/v1/callback.py

@@ -74,7 +74,7 @@ class AsyncStreamingLLMCallbackHandleSIO(AsyncCallbackHandler):
             # This is to emulate the stream of tokens
             for resp in resps:
                 await self.socketio_service.emit_token(to=self.sid, data=resp.model_dump())
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error sending response")
 
     async def on_tool_error(

src/backend/base/langflow/api/v1/chat.py

@@ -60,7 +60,7 @@ async def try_running_celery_task(vertex, user_id):
 
         task = build_vertex.delay(vertex)
         vertex.task_id = task.id
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.opt(exception=True).debug("Error running task in celery")
         vertex.task_id = None
         await vertex.build(user_id=user_id)
@@ -167,8 +167,8 @@ async def build_flow(
             if stop_component_id or start_component_id:
                 try:
                     first_layer = graph.sort_vertices(stop_component_id, start_component_id)
-                except Exception as exc:
+                except Exception:  # noqa: BLE001
-                    logger.exception(exc)
+                    logger.exception("Error sorting vertices")
                     first_layer = graph.sort_vertices()
             else:
                 first_layer = graph.sort_vertices()
@@ -233,7 +233,7 @@ async def build_flow(
                 top_level_vertices = graph.get_top_level_vertices(next_runnable_vertices)
 
                 result_data_response = ResultDataResponse.model_validate(result_dict, from_attributes=True)
-            except Exception as exc:
+            except Exception as exc:  # noqa: BLE001
                 if isinstance(exc, ComponentBuildException):
                     params = exc.message
                     tb = exc.formatted_traceback
@@ -515,7 +515,7 @@ async def build_vertex(
             next_runnable_vertices = await graph.get_next_runnable_vertices(lock, vertex=vertex, cache=False)
             top_level_vertices = graph.get_top_level_vertices(next_runnable_vertices)
             result_data_response = ResultDataResponse.model_validate(result_dict, from_attributes=True)
-        except Exception as exc:
+        except Exception as exc:  # noqa: BLE001
             if isinstance(exc, ComponentBuildException):
                 params = exc.message
                 tb = exc.formatted_traceback
@@ -690,7 +690,7 @@ async def build_vertex_stream(
                     msg = f"No result found for vertex {vertex_id}"
                     raise ValueError(msg)
 
-            except Exception as exc:
+            except Exception as exc:  # noqa: BLE001
                 logger.exception("Error building Component")
                 exc_message = parse_exception(exc)
                 if exc_message == "The message must be an iterator or an async iterator.":

src/backend/base/langflow/api/v1/endpoints.py

@@ -168,7 +168,7 @@ async def simple_run_flow_task(
             api_key_user=api_key_user,
         )
 
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.exception(f"Error running flow {flow.id} task")
 
 

src/backend/base/langflow/api/v1/flows.py

@@ -170,8 +170,8 @@ def read_flows(
                 for example_flow in example_flows:
                     if example_flow.id not in flow_ids:
                         flows.append(example_flow)
-            except Exception as e:
+            except Exception:  # noqa: BLE001
-                logger.exception(e)
+                logger.exception("Error getting example flows")
 
         if remove_example_flows:
             flows = [flow for flow in flows if flow.folder_id != folder.id]

src/backend/base/langflow/api/v1/store.py

@@ -42,7 +42,7 @@ def get_optional_user_store_api_key(
         return None
     try:
         return auth_utils.decrypt_api_key(user.store_api_key, settings_service)
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.exception("Failed to decrypt API key")
         return user.store_api_key
 

src/backend/base/langflow/api/v1/validate.py

@@ -17,7 +17,8 @@ def post_validate_code(code: Code):
             imports=errors.get("imports", {}),
             function=errors.get("function", {}),
         )
-    except Exception as e:
+    except Exception as e:  # noqa: BLE001
+        logger.opt(exception=True).debug("Error validating code")
         return HTTPException(status_code=500, detail=str(e))
 
 

src/backend/base/langflow/base/tools/flow_tool.py

@@ -102,7 +102,7 @@ class FlowTool(BaseTool):
         tweaks = self.build_tweaks_dict(args, kwargs)
         try:
             run_id = self.graph.run_id if self.graph else None
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).warning("Failed to set run_id")
             run_id = None
         run_outputs = await run_flow(

src/backend/base/langflow/components/Notion/add_content_to_page.py

@@ -4,6 +4,7 @@ from typing import Any
 import requests
 from bs4 import BeautifulSoup
 from langchain.tools import StructuredTool
+from loguru import logger
 from markdown import markdown
 from pydantic import BaseModel, Field
 
@@ -82,7 +83,8 @@ class AddContentToPage(LCToolComponent):
             if hasattr(e, "response") and e.response is not None:
                 error_message += f" Status code: {e.response.status_code}, Response: {e.response.text}"
             return error_message
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error adding content to Notion page")
             return f"Error: An unexpected error occurred while adding content to Notion page. {e}"
 
     def process_node(self, node):

src/backend/base/langflow/components/Notion/list_database_properties.py

@@ -1,5 +1,6 @@
 import requests
 from langchain.tools import StructuredTool
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -62,5 +63,6 @@ class NotionDatabaseProperties(LCToolComponent):
             return f"Error fetching Notion database properties: {e}"
         except ValueError as e:
             return f"Error parsing Notion API response: {e}"
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error fetching Notion database properties")
             return f"An unexpected error occurred: {e}"

src/backend/base/langflow/components/Notion/list_pages.py

@@ -3,6 +3,7 @@ from typing import Any
 
 import requests
 from langchain.tools import StructuredTool
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -116,5 +117,6 @@ class NotionListPages(LCToolComponent):
             return f"Error querying Notion database: {e}"
         except KeyError:
             return "Unexpected response format from Notion API"
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error querying Notion database")
             return f"An unexpected error occurred: {e}"

src/backend/base/langflow/components/Notion/page_content_viewer.py

@@ -1,5 +1,6 @@
 import requests
 from langchain.tools import StructuredTool
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -63,7 +64,8 @@ class NotionPageContent(LCToolComponent):
             if hasattr(e, "response") and e.response is not None:
                 error_message += f" Status code: {e.response.status_code}, Response: {e.response.text}"
             return error_message
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error retrieving Notion page content")
             return f"Error: An unexpected error occurred while retrieving Notion page content. {e}"
 
     def parse_blocks(self, blocks: list) -> str:

src/backend/base/langflow/components/Notion/update_page_property.py

@@ -104,7 +104,7 @@ class NotionPageUpdate(LCToolComponent):
             error_message = f"An error occurred while making the request: {e}"
             logger.exception(error_message)
             return error_message
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             error_message = f"An unexpected error occurred: {e}"
             logger.exception(error_message)
             return error_message

src/backend/base/langflow/components/assemblyai/AssemblyAIGetSubtitles.py

@@ -1,4 +1,5 @@
 import assemblyai as aai
+from loguru import logger
 
 from langflow.custom import Component
 from langflow.io import DataInput, DropdownInput, IntInput, Output, SecretStrInput
@@ -53,8 +54,9 @@ class AssemblyAIGetSubtitles(Component):
         try:
             transcript_id = self.transcription_result.data["id"]
             transcript = aai.Transcript.get_by_id(transcript_id)
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             error = f"Getting transcription failed: {e}"
+            logger.opt(exception=True).debug(error)
             self.status = error
             return Data(data={"error": error})
 

src/backend/base/langflow/components/assemblyai/AssemblyAILeMUR.py

@@ -1,4 +1,5 @@
 import assemblyai as aai
+from loguru import logger
 
 from langflow.custom import Component
 from langflow.io import DataInput, DropdownInput, FloatInput, IntInput, MultilineInput, Output, SecretStrInput
@@ -134,7 +135,8 @@ class AssemblyAILeMUR(Component):
             result = Data(data=response)
             self.status = result
             return result
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error running LeMUR")
             error = f"An Error happened: {e}"
             self.status = error
             return Data(data={"error": error})

src/backend/base/langflow/components/assemblyai/AssemblyAIListTranscripts.py

@@ -1,4 +1,5 @@
 import assemblyai as aai
+from loguru import logger
 
 from langflow.custom import Component
 from langflow.io import BoolInput, DropdownInput, IntInput, MessageTextInput, Output, SecretStrInput
@@ -85,7 +86,8 @@ class AssemblyAIListTranscripts(Component):
 
             self.status = transcripts
             return transcripts
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error listing transcripts")
             error_data = Data(data={"error": f"An error occurred: {e}"})
             self.status = [error_data]
             return [error_data]

src/backend/base/langflow/components/assemblyai/AssemblyAIPollTranscript.py

@@ -1,4 +1,5 @@
 import assemblyai as aai
+from loguru import logger
 
 from langflow.custom import Component
 from langflow.field_typing.range_spec import RangeSpec
@@ -49,8 +50,9 @@ class AssemblyAITranscriptionJobPoller(Component):
 
         try:
             transcript = aai.Transcript.get_by_id(self.transcript_id.data["transcript_id"])
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             error = f"Getting transcription failed: {e}"
+            logger.opt(exception=True).debug(error)
             self.status = error
             return Data(data={"error": error})
 

src/backend/base/langflow/components/assemblyai/AssemblyAIStartTranscript.py

@@ -180,6 +180,7 @@ class AssemblyAITranscriptionJobCreator(Component):
             result = Data(data={"transcript_id": transcript.id})
             self.status = result
             return result
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error submitting transcription job")
             self.status = f"An error occurred: {e}"
             return Data(data={"error": f"An error occurred: {e}"})

src/backend/base/langflow/components/data/APIRequest.py

@@ -131,7 +131,8 @@ class APIRequestComponent(Component):
             response = await client.request(method, url, headers=headers, json=data, timeout=timeout)
             try:
                 result = response.json()
-            except Exception:
+            except Exception:  # noqa: BLE001
+                logger.opt(exception=True).debug("Error decoding JSON response")
                 result = response.text
             return Data(
                 data={
@@ -150,7 +151,8 @@ class APIRequestComponent(Component):
                     "error": "Request timed out",
                 },
             )
-        except Exception as exc:
+        except Exception as exc:  # noqa: BLE001
+            logger.opt(exception=True).debug(f"Error making request to {url}")
             return Data(
                 data={
                     "source": url,

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

@@ -54,7 +54,7 @@ class SubFlowComponent(CustomComponent):
                 inputs = get_flow_inputs(graph)
                 # Add inputs to the build config
                 build_config = self.add_inputs_to_build_config(inputs, build_config)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error getting flow {field_value}")
 
         return build_config

src/backend/base/langflow/components/helpers/CurrentDate.py

@@ -1,6 +1,8 @@
 from datetime import datetime
 from zoneinfo import ZoneInfo
 
+from loguru import logger
+
 from langflow.custom import Component
 from langflow.io import DropdownInput, Output
 from langflow.schema.message import Message
@@ -67,7 +69,8 @@ class CurrentDateComponent(Component):
             result = f"Current date and time in {self.timezone}: {current_date}"
             self.status = result
             return Message(text=result)
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error getting current date")
             error_message = f"Error: {e}"
             self.status = error_message
             return Message(text=error_message)

src/backend/base/langflow/components/helpers/MessageToData.py

@@ -1,3 +1,5 @@
+from loguru import logger
+
 from langflow.custom import Component
 from langflow.io import MessageInput, Output
 from langflow.schema import Data
@@ -34,7 +36,8 @@ class MessageToDataComponent(Component):
 
             self.status = "Successfully converted Message to Data"
             return data
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             error_message = f"Error converting Message to Data: {e}"
+            logger.opt(exception=True).debug(error_message)
             self.status = error_message
             return Data(data={"error": error_message})

src/backend/base/langflow/components/prototypes/FlowTool.py

@@ -85,7 +85,7 @@ class FlowToolComponent(LCToolComponent):
         graph = Graph.from_payload(flow_data.data["data"])
         try:
             graph.set_run_id(self.graph.run_id)
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).warning("Failed to set run_id")
         inputs = get_flow_inputs(graph)
         tool = FlowTool(

src/backend/base/langflow/components/prototypes/PythonFunction.py

@@ -1,5 +1,7 @@
 from collections.abc import Callable
 
+from loguru import logger
+
 from langflow.custom import Component
 from langflow.custom.utils import get_function
 from langflow.io import CodeInput, Output
@@ -54,7 +56,8 @@ class PythonFunctionComponent(Component):
         try:
             func = get_function(function_code)
             return func()
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error executing function")
             return f"Error executing function: {e}"
 
     def execute_function_data(self) -> list[Data]:

src/backend/base/langflow/components/prototypes/SubFlow.py

@@ -46,7 +46,7 @@ class SubFlowComponent(Component):
                 inputs = get_flow_inputs(graph)
                 # Add inputs to the build config
                 build_config = self.add_inputs_to_build_config(inputs, build_config)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error getting flow {field_value}")
 
         return build_config

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

@@ -65,7 +65,8 @@ class ComposioAPIComponent(LCToolComponent):
         try:
             entity.get_connection(app=app)
             return f"{app} CONNECTED"
-        except Exception:
+        except Exception:  # noqa: BLE001
+            logger.opt(exception=True).debug("Authorization error")
             return self._handle_authorization_failure(toolset, entity, app)
 
     def _handle_authorization_failure(self, toolset: ComposioToolSet, entity: Any, app: str) -> str:
@@ -85,7 +86,7 @@ class ComposioAPIComponent(LCToolComponent):
             if auth_schemes[0].auth_mode == "API_KEY":
                 return self._process_api_key_auth(entity, app)
             return self._initiate_default_connection(entity, app)
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Authorization error")
             return "Error"
 

src/backend/base/langflow/components/tools/Calculator.py

@@ -2,6 +2,7 @@ import ast
 import operator
 
 from langchain.tools import StructuredTool
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -76,7 +77,8 @@ class CalculatorToolComponent(LCToolComponent):
             error_message = "Error: Division by zero"
             self.status = error_message
             return [Data(data={"error": error_message})]
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error evaluating expression")
             error_message = f"Error: {e}"
             self.status = error_message
             return [Data(data={"error": error_message})]

src/backend/base/langflow/components/tools/PythonCodeStructuredTool.py

@@ -4,6 +4,7 @@ from typing import Any
 
 from langchain.agents import Tool
 from langchain_core.tools import StructuredTool
+from loguru import logger
 from pydantic.v1 import Field, create_model
 from pydantic.v1.fields import Undefined
 
@@ -119,8 +120,9 @@ class PythonCodeStructuredTool(LCToolComponent):
             build_config["_functions"]["value"] = json.dumps(named_functions)
             build_config["_classes"]["value"] = json.dumps(classes)
             build_config["tool_function"]["options"] = names
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             self.status = f"Failed to extract names: {e}"
+            logger.opt(exception=True).debug(self.status)
             build_config["tool_function"]["options"] = ["Failed to parse", str(e)]
         return build_config
 

src/backend/base/langflow/components/tools/PythonREPLTool.py

@@ -2,6 +2,7 @@ import importlib
 
 from langchain.tools import StructuredTool
 from langchain_experimental.utilities import PythonREPL
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -73,7 +74,8 @@ class PythonREPLToolComponent(LCToolComponent):
         def run_python_code(code: str) -> str:
             try:
                 return python_repl.run(code)
-            except Exception as e:
+            except Exception as e:  # noqa: BLE001
+                logger.opt(exception=True).debug("Error running Python code")
                 return f"Error: {e}"
 
         tool = StructuredTool.from_function(

src/backend/base/langflow/components/tools/SearXNGTool.py

@@ -5,6 +5,7 @@ from typing import Any
 import requests
 from langchain.agents import Tool
 from langchain_core.tools import StructuredTool
+from loguru import logger
 from pydantic.v1 import Field, create_model
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -72,8 +73,9 @@ class SearXNGToolComponent(LCToolComponent):
                     build_config["categories"]["value"].remove(selected_category)
             languages = list(data["locales"])
             build_config["language"]["options"] = languages.copy()
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             self.status = f"Failed to extract names: {e}"
+            logger.opt(exception=True).debug(self.status)
             build_config["categories"]["options"] = ["Failed to parse", str(e)]
         return build_config
 
@@ -107,7 +109,8 @@ class SearXNGToolComponent(LCToolComponent):
 
                     num_results = min(SearxSearch._max_results, len(response["results"]))
                     return [response["results"][i] for i in range(num_results)]
-                except Exception as e:
+                except Exception as e:  # noqa: BLE001
+                    logger.opt(exception=True).debug("Error running SearXNG Search")
                     return [f"Failed to search: {e}"]
 
         SearxSearch._url = self.url

src/backend/base/langflow/components/tools/SerpAPI.py

@@ -2,6 +2,7 @@ from typing import Any
 
 from langchain.tools import StructuredTool
 from langchain_community.utilities.serpapi import SerpAPIWrapper
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -87,6 +88,7 @@ class SerpAPIComponent(LCToolComponent):
 
             self.status = data_list
             return data_list
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error running SerpAPI")
             self.status = f"Error: {e}"
             return [Data(data={"error": str(e)}, text=str(e))]

src/backend/base/langflow/components/tools/TavilyAISearch.py

@@ -2,6 +2,7 @@ from typing import Any
 
 import httpx
 from langchain.tools import StructuredTool
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -154,7 +155,8 @@ Note: Check 'Advanced' for all options.
             error_message = f"HTTP error: {e.response.status_code} - {e.response.text}"
             self.status = error_message
             return [Data(data={"error": error_message})]
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error running Tavily Search")
             error_message = f"Unexpected error: {e}"
             self.status = error_message
             return [Data(data={"error": error_message})]

src/backend/base/langflow/components/tools/YfinanceTool.py

@@ -3,6 +3,7 @@ import pprint
 
 import yfinance as yf
 from langchain.tools import StructuredTool
+from loguru import logger
 from pydantic import BaseModel, Field
 
 from langflow.base.langchain_utilities.model import LCToolComponent
@@ -95,7 +96,8 @@ class YfinanceToolComponent(LCToolComponent):
 
             return data_list
 
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             error_message = f"Error retrieving data: {e}"
+            logger.opt(exception=True).debug(error_message)
             self.status = error_message
             return [Data(data={"error": error_message})]

src/backend/base/langflow/custom/code_parser/code_parser.py

@@ -342,7 +342,7 @@ class CodeParser:
                 for import_node in import_nodes:
                     self.parse_imports(import_node)
                 nodes.append(class_node)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception("Error finding base class node")
         nodes.insert(0, node)
         class_details = ClassCodeDetails(

src/backend/base/langflow/custom/custom_component/component.py

@@ -8,6 +8,7 @@ from typing import TYPE_CHECKING, Any, ClassVar, get_type_hints
 
 import nanoid
 import yaml
+from loguru import logger
 from pydantic import BaseModel
 
 from langflow.base.tools.constants import TOOL_OUTPUT_NAME
@@ -338,7 +339,8 @@ class Component(CustomComponent):
             try:
                 source_code = inspect.getsource(method)
                 ast_tree = ast.parse(dedent(source_code))
-            except Exception:
+            except Exception:  # noqa: BLE001
+                logger.opt(exception=True).debug(f"Could not get source code for method {method}")
                 source_code = self._code
                 ast_tree = ast.parse(dedent(source_code))
 

src/backend/base/langflow/custom/directory_reader/directory_reader.py

@@ -77,9 +77,8 @@ class DirectoryReader:
                     if component["error"] if with_errors else not component["error"]:
                         component_tuple = (*build_component(component), component)
                         components.append(component_tuple)
-                except Exception as e:
+                except Exception:  # noqa: BLE001
-                    logger.debug(f"Error while loading component {component['name']}")
+                    logger.opt(exception=True).debug(f"Error while loading component {component['name']}")
-                    logger.debug(e)
                     continue
             items.append({"name": menu["name"], "path": menu["path"], "components": components})
         filtered = [menu for menu in items if menu["components"]]
@@ -215,7 +214,7 @@ class DirectoryReader:
         """
         try:
             file_content = self.read_file_content(file_path)
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception(f"Error while reading file {file_path}")
             return False, f"Could not read {file_path}"
 
@@ -270,7 +269,8 @@ class DirectoryReader:
             if validation_result:
                 try:
                     output_types = self.get_output_types_from_code(result_content)
-                except Exception:
+                except Exception:  # noqa: BLE001
+                    logger.opt(exception=True).debug("Error while getting output types from code")
                     output_types = [component_name_camelcase]
             else:
                 output_types = [component_name_camelcase]
@@ -292,7 +292,7 @@ class DirectoryReader:
     async def process_file_async(self, file_path):
         try:
             file_content = self.read_file_content(file_path)
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception(f"Error while reading file {file_path}")
             return False, f"Could not read {file_path}"
 
@@ -346,7 +346,7 @@ class DirectoryReader:
             if validation_result:
                 try:
                     output_types = await self.get_output_types_from_code_async(result_content)
-                except Exception:
+                except Exception:  # noqa: BLE001
                     logger.exception("Error while getting output types from code")
                     output_types = [component_name_camelcase]
             else:

src/backend/base/langflow/custom/directory_reader/utils.py

@@ -132,7 +132,7 @@ def build_invalid_menu_items(menu_item):
             component_name, component_template = build_invalid_component(component)
             menu_items[component_name] = component_template
             logger.debug(f"Added {component_name} to invalid menu.")
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception(f"Error while creating custom component [{component_name}]")
     return menu_items
 
@@ -165,6 +165,6 @@ def build_menu_items(menu_item):
     for component_name, component_template, component in menu_item["components"]:
         try:
             menu_items[component_name] = component_template
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception(f"Error while building custom component {component['output_types']}")
     return menu_items

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

@@ -121,7 +121,7 @@ class Graph:
         self._snapshots: list[dict[str, Any]] = []
         try:
             self.tracing_service: TracingService | None = get_tracing_service()
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error getting tracing service")
             self.tracing_service = None
         if start is not None and end is not None:
@@ -676,8 +676,8 @@ class Graph:
             cache_service = get_chat_service()
             if self.flow_id:
                 await cache_service.set_cache(self.flow_id, self)
-        except Exception as exc:
+        except Exception:  # noqa: BLE001
-            logger.exception(exc)
+            logger.exception("Error setting cache")
 
         try:
             # Prioritize the webhook component if it exists
@@ -1368,7 +1368,8 @@ class Graph:
                             vertex._finalize_build()
                             if vertex.result is not None:
                                 vertex.result.used_frozen_result = True
-                        except Exception:
+                        except Exception:  # noqa: BLE001
+                            logger.opt(exception=True).debug("Error finalizing build")
                             should_build = True
                     except KeyError:
                         should_build = True
@@ -1747,8 +1748,8 @@ class Graph:
         if stop_component_id or start_component_id:
             try:
                 first_layer = self.sort_vertices(stop_component_id, start_component_id)
-            except Exception as exc:
+            except Exception:  # noqa: BLE001
-                logger.exception(exc)
+                logger.exception("Error sorting vertices")
                 first_layer = self.sort_vertices()
         else:
             first_layer = self.sort_vertices()

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

@@ -16,7 +16,7 @@ class GraphStateManager:
     def __init__(self):
         try:
             self.state_service: StateService = get_state_service()
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).debug("Error getting state service. Defaulting to InMemoryStateService")
             from langflow.services.state.service import InMemoryStateService
 
@@ -42,6 +42,6 @@ class GraphStateManager:
         for callback in self.observers[key]:
             try:
                 callback(key, new_state, append=True)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error in observer {callback} for key {key}")
                 logger.warning("Callbacks not implemented yet")

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

@@ -155,7 +155,7 @@ async def log_transaction(
         with session_getter(get_db_service()) as session:
             inserted = crud_log_transaction(session, transaction)
             logger.debug(f"Logged transaction: {inserted.id}")
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.exception("Error logging transaction")
 
 
@@ -183,7 +183,7 @@ def log_vertex_build(
         with session_getter(get_db_service()) as session:
             inserted = crud_log_vertex_build(session, vertex_build)
             logger.debug(f"Logged vertex build: {inserted.build_id}")
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.exception("Error logging vertex build")
 
 

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

@@ -371,7 +371,8 @@ class Vertex:
                 if field.get("type") == "code":
                     try:
                         params[field_name] = ast.literal_eval(val) if val else None
-                    except Exception:
+                    except Exception:  # noqa: BLE001
+                        logger.opt(exception=True).debug(f"Error evaluating code for {field_name}")
                         params[field_name] = val
                 elif field.get("type") in ["dict", "NestedDict"]:
                     # When dict comes from the frontend it comes as a

src/backend/base/langflow/initial_setup/setup.py

@@ -382,7 +382,7 @@ def copy_profile_pictures():
         shutil.copytree(origin, target, dirs_exist_ok=True)
         logger.debug(f"Folder copied from '{origin}' to '{target}'")
 
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.exception("Error copying the folder")
 
 
@@ -602,8 +602,8 @@ async def create_or_update_starter_projects(get_all_components_coro: Awaitable[d
             updated_project_data = update_edges_with_latest_component_versions(updated_project_data)
             try:
                 Graph.from_payload(updated_project_data)
-            except Exception as e:
+            except Exception:  # noqa: BLE001
-                logger.exception(e)
+                logger.exception(f"Error loading project {project_name}")
             if updated_project_data != project_data:
                 project_data = updated_project_data
                 # We also need to update the project data in the file

src/backend/base/langflow/interface/initialize/loading.py

@@ -137,7 +137,7 @@ def update_params_with_load_from_db_fields(
             except TypeError as exc:
                 raise exc
 
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Failed to get value for {field} from custom component. Setting it to None.")
                 params[field] = None
 

src/backend/base/langflow/interface/utils.py

@@ -96,7 +96,7 @@ def setup_llm_caching():
         set_langchain_cache(settings_service.settings)
     except ImportError:
         logger.warning(f"Could not import {settings_service.settings.cache_type}. ")
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.opt(exception=True).warning("Could not setup LLM caching.")
 
 

src/backend/base/langflow/load/load.py

@@ -111,7 +111,7 @@ def run_flow_from_json(
         import nest_asyncio
 
         nest_asyncio.apply()
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.opt(exception=True).warning("Could not apply nest_asyncio")
     if tweaks is None:
         tweaks = {}

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

@@ -192,7 +192,7 @@ def configure(
                 rotation="10 MB",  # Log rotation based on file size
                 serialize=True,
             )
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error setting up log file")
 
     if log_buffer.enabled():

src/backend/base/langflow/processing/base.py

@@ -30,7 +30,7 @@ def get_langfuse_callback(trace_id):
         try:
             trace = langfuse.trace(name="langflow-" + trace_id, id=trace_id)
             return trace.getNewHandler()
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error initializing langfuse callback")
 
     return None

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

@@ -2,6 +2,7 @@ from collections.abc import Generator
 from enum import Enum
 
 from fastapi.encoders import jsonable_encoder
+from loguru import logger
 from pydantic import BaseModel
 
 from langflow.schema import Data
@@ -66,7 +67,8 @@ def post_process_raw(raw, artifact_type: str):
             try:
                 raw = jsonable_encoder(raw)
                 artifact_type = ArtifactType.OBJECT.value
-            except Exception:
+            except Exception:  # noqa: BLE001
+                logger.opt(exception=True).debug("Error converting to json")
                 raw = "Built Successfully ✨"
         else:
             raw = "Built Successfully ✨"

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

@@ -5,6 +5,7 @@ from typing import TYPE_CHECKING, cast
 from langchain_core.documents import Document
 from langchain_core.messages import AIMessage, BaseMessage, HumanMessage
 from langchain_core.prompts.image import ImagePromptTemplate
+from loguru import logger
 from pydantic import BaseModel, model_serializer, model_validator
 
 from langflow.utils.constants import MESSAGE_SENDER_AI, MESSAGE_SENDER_USER
@@ -209,7 +210,8 @@ class Data(BaseModel):
         try:
             data = {k: v.to_json() if hasattr(v, "to_json") else v for k, v in self.data.items()}
             return json.dumps(data, indent=4)
-        except Exception:
+        except Exception:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error converting Data to JSON")
             return str(self.data)
 
     def __contains__(self, key):

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

@@ -2,6 +2,7 @@ from collections.abc import AsyncIterator, Generator, Iterator
 from enum import Enum
 from typing import Literal
 
+from loguru import logger
 from pydantic import BaseModel
 from typing_extensions import TypedDict
 
@@ -141,5 +142,6 @@ def recursive_serialize_or_str(obj):
             # This a type BaseModel and not an instance of it
             return repr(obj)
         return str(obj)
-    except Exception:
+    except Exception:  # noqa: BLE001
+        logger.opt(exception=True).debug(f"Cannot serialize object {obj}")
         return str(obj)

src/backend/base/langflow/services/auth/utils.py

@@ -379,6 +379,7 @@ def decrypt_api_key(encrypted_api_key: str, settings_service=Depends(get_setting
     if isinstance(encrypted_api_key, str):
         try:
             decrypted_key = fernet.decrypt(encrypted_api_key.encode()).decode()
-        except Exception:
+        except Exception:  # noqa: BLE001
+            logger.opt(exception=True).debug("Failed to decrypt API key")
             decrypted_key = fernet.decrypt(encrypted_api_key).decode()
     return decrypted_key

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

@@ -2,6 +2,7 @@ from datetime import datetime, timezone
 from uuid import UUID
 
 from fastapi import Depends, HTTPException, status
+from loguru import logger
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm.attributes import flag_modified
 from sqlmodel import Session, select
@@ -53,5 +54,5 @@ def update_user_last_login_at(user_id: UUID, db: Session = Depends(get_session))
         user_data = UserUpdate(last_login_at=datetime.now(timezone.utc))
         user = get_user_by_id(db, user_id)
         return update_user(user, user_data, db)
-    except Exception:
+    except Exception:  # noqa: BLE001
-        pass
+        logger.opt(exception=True).debug("Error updating user last login at")

src/backend/base/langflow/services/database/service.py

@@ -187,8 +187,8 @@ class DatabaseService(Service):
                 # so we need to catch it
                 try:
                     session.exec(text("SELECT * FROM alembic_version"))
-                except Exception:
+                except Exception:  # noqa: BLE001
-                    logger.info("Alembic not initialized")
+                    logger.opt(exception=True).info("Alembic not initialized")
                     should_initialize_alembic = True
 
             if should_initialize_alembic:
@@ -206,7 +206,8 @@ class DatabaseService(Service):
             try:
                 buffer.write(f"{datetime.now(tz=timezone.utc).astimezone().isoformat()}: Checking migrations\n")
                 command.check(alembic_cfg)
-            except Exception as exc:
+            except Exception as exc:  # noqa: BLE001
+                logger.opt(exception=True).debug("Error checking migrations")
                 if isinstance(exc, util.exc.CommandError | util.exc.AutogenerateDiffsDetected):
                     command.upgrade(alembic_cfg, "head")
                     time.sleep(3)
@@ -215,7 +216,7 @@ class DatabaseService(Service):
                 buffer.write(f"{datetime.now(tz=timezone.utc).astimezone()}: Checking migrations\n")
                 command.check(alembic_cfg)
             except util.exc.AutogenerateDiffsDetected as exc:
-                logger.exception("AutogenerateDiffsDetected")
+                logger.exception("Error checking migrations")
                 if not fix:
                     msg = f"There's a mismatch between the models and the database.\n{exc}"
                     raise RuntimeError(msg) from exc
@@ -313,7 +314,7 @@ class DatabaseService(Service):
             with self.with_session() as session:
                 teardown_superuser(settings_service, session)
 
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error tearing down database")
 
         self.engine.dispose()

src/backend/base/langflow/services/manager.py

@@ -34,7 +34,7 @@ class ServiceManager:
         for factory in self.get_factories():
             try:
                 self.register_factory(factory)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error initializing {factory}")
 
     def register_factory(
@@ -111,7 +111,7 @@ class ServiceManager:
                 result = service.teardown()
                 if asyncio.iscoroutine(result):
                     await result
-            except Exception as exc:
+            except Exception as exc:  # noqa: BLE001
                 logger.exception(exc)
         self.services = {}
         self.factories = {}

src/backend/base/langflow/services/plugins/langfuse_plugin.py

@@ -80,7 +80,7 @@ class LangfusePlugin(CallbackPlugin):
                 if trace:
                     return trace.getNewHandler()
 
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error initializing langfuse callback")
 
         return None

src/backend/base/langflow/services/plugins/service.py

@@ -40,7 +40,7 @@ class PluginService(Service):
                             and attr not in [CallbackPlugin, BasePlugin]
                         ):
                             self.register_plugin(plugin_name, attr())
-                except Exception:
+                except Exception:  # noqa: BLE001
                     logger.exception(f"Error loading plugin {plugin_name}")
 
     def register_plugin(self, plugin_name, plugin_instance):

src/backend/base/langflow/services/settings/base.py

@@ -277,7 +277,7 @@ class Settings(BaseSettings):
                         logger.debug("Copying existing database to new location")
                         copy2(f"./{db_file_name}", new_path)
                         logger.debug(f"Copied existing database to {new_path}")
-                    except Exception:
+                    except Exception:  # noqa: BLE001
                         logger.exception("Failed to copy database, using default path")
                         new_path = f"./{db_file_name}"
                 else:

src/backend/base/langflow/services/settings/utils.py

@@ -33,7 +33,7 @@ def write_secret_to_file(path: Path, value: str) -> None:
         f.write(value.encode("utf-8"))
     try:
         set_secure_permissions(path)
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.exception("Failed to set secure permissions on secret key")
 
 

src/backend/base/langflow/services/socket/utils.py

@@ -2,6 +2,7 @@ import time
 from collections.abc import Callable
 
 import socketio
+from loguru import logger
 from sqlmodel import select
 
 from langflow.api.utils import format_elapsed_time
@@ -35,7 +36,8 @@ async def get_vertices(sio, sid, flow_id, chat_service):
         # Emit the vertices to the client
         await sio.emit("vertices_order", data=vertices, to=sid)
 
-    except Exception as exc:
+    except Exception as exc:  # noqa: BLE001
+        logger.opt(exception=True).debug("Error getting vertices")
         await sio.emit("error", data=str(exc), to=sid)
 
 
@@ -80,7 +82,8 @@ async def build_vertex(
                 duration=duration,
                 timedelta=timedelta,
             )
-        except Exception as exc:
+        except Exception as exc:  # noqa: BLE001
+            logger.opt(exception=True).debug("Error building vertex")
             params = str(exc)
             valid = False
             result_dict = ResultDataResponse(results={})
@@ -99,5 +102,6 @@ async def build_vertex(
         response = VertexBuildResponse(valid=valid, params=params, id=vertex.id, data=result_dict)
         await sio.emit("vertex_build", data=response.model_dump(), to=sid)
 
-    except Exception as exc:
+    except Exception as exc:  # noqa: BLE001
+        logger.opt(exception=True).debug("Error building vertex")
         await sio.emit("error", data=str(exc), to=sid)

src/backend/base/langflow/services/state/service.py

@@ -69,6 +69,6 @@ class InMemoryStateService(StateService):
         for callback in self.observers[key]:
             try:
                 callback(key, new_state, append=True)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error in observer {callback} for key {key}")
                 logger.warning("Callbacks not implemented yet")

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

@@ -161,7 +161,7 @@ class StoreService(Service):
             return response.json()
         except HTTPError as exc:
             raise exc
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).debug("Webhook failed")
 
     def build_tags_filter(self, tags: list[str]):
@@ -587,7 +587,8 @@ class StoreService(Service):
                         )
                         authorized = True
                         result = updated_result
-                    except Exception:
+                    except Exception:  # noqa: BLE001
+                        logger.opt(exception=True).debug("Error updating components with user data")
                         # If we get an error here, it means the user is not authorized
                         authorized = False
         return ListComponentResponseModel(results=result, authorized=authorized, count=comp_count)

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

@@ -1,6 +1,7 @@
 from typing import TYPE_CHECKING
 
 import httpx
+from loguru import logger
 
 if TYPE_CHECKING:
     from langflow.services.store.schema import ListComponentResponse
@@ -47,7 +48,8 @@ def get_lf_version_from_pypi():
         if response.status_code != httpx.codes.OK:
             return None
         return response.json()["info"]["version"]
-    except Exception:
+    except Exception:  # noqa: BLE001
+        logger.opt(exception=True).debug("Error getting the latest version of langflow from PyPI")
         return None
 
 

src/backend/base/langflow/services/task/backends/anyio.py

@@ -37,7 +37,7 @@ class AnyIOTaskResult:
     async def run(self, func, *args, **kwargs):
         try:
             self._result = await func(*args, **kwargs)
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             self._exception = e
             self._traceback = e.__traceback__
         finally:
@@ -72,7 +72,7 @@ class AnyIOBackend(TaskBackend):
                 self.tasks[task_id] = task_result
                 logger.info(f"Task {task_id} started.")
                 return task_id, task_result
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception("An error occurred while launching the task")
                 return None, None
 

src/backend/base/langflow/services/task/service.py

@@ -20,7 +20,7 @@ def check_celery_availability():
 
         status = get_celery_worker_status(celery_app)
         logger.debug(f"Celery status: {status}")
-    except Exception:
+    except Exception:  # noqa: BLE001
         logger.opt(exception=True).debug("Celery not available")
         status = {"availability": None}
     return status

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

@@ -51,7 +51,7 @@ class TelemetryService(Service):
             func, payload, path = await self.telemetry_queue.get()
             try:
                 await func(payload, path)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception("Error sending telemetry data")
             finally:
                 self.telemetry_queue.task_done()
@@ -75,7 +75,7 @@ class TelemetryService(Service):
             logger.exception("HTTP error occurred")
         except httpx.RequestError:
             logger.exception("Request error occurred")
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Unexpected error occurred")
 
     async def log_package_run(self, payload: RunPayload):
@@ -120,7 +120,7 @@ class TelemetryService(Service):
             self._start_time = datetime.now(timezone.utc)
             self.worker_task = asyncio.create_task(self.telemetry_worker())
             asyncio.create_task(self.log_package_version())
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error starting telemetry service")
 
     async def flush(self):
@@ -128,7 +128,7 @@ class TelemetryService(Service):
             return
         try:
             await self.telemetry_queue.join()
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error flushing logs")
 
     async def stop(self):
@@ -144,7 +144,7 @@ class TelemetryService(Service):
                 with contextlib.suppress(asyncio.CancelledError):
                     await self.worker_task
             await self.client.aclose()
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error stopping tracing service")
 
     async def teardown(self):

src/backend/base/langflow/services/tracing/langfuse.py

@@ -57,7 +57,7 @@ class LangFuseTracer(BaseTracer):
             logger.exception("Could not import langfuse. Please install it with `pip install langfuse`.")
             return False
 
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).debug("Error setting up LangSmith tracer")
             return False
 

src/backend/base/langflow/services/tracing/langsmith.py

@@ -41,7 +41,7 @@ class LangSmithTracer(BaseTracer):
             )
             self._run_tree.add_event({"name": "Start", "time": datetime.now(timezone.utc).isoformat()})
             self._children: dict[str, RunTree] = {}
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).debug("Error setting up LangSmith tracer")
             self._ready = False
 

src/backend/base/langflow/services/tracing/langwatch.py

@@ -46,7 +46,7 @@ class LangWatchTracer(BaseTracer):
                 name=name_without_id,
                 type="workflow",
             )
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).debug("Error setting up LangWatch tracer")
             self._ready = False
 

src/backend/base/langflow/services/tracing/service.py

@@ -63,7 +63,7 @@ class TracingService(Service):
             log_func, args = await self.logs_queue.get()
             try:
                 await log_func(*args)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception("Error processing log")
             finally:
                 self.logs_queue.task_done()
@@ -74,13 +74,13 @@ class TracingService(Service):
         try:
             self.running = True
             self.worker_task = asyncio.create_task(self.log_worker())
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error starting tracing service")
 
     async def flush(self):
         try:
             await self.logs_queue.join()
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error flushing logs")
 
     async def stop(self):
@@ -94,7 +94,7 @@ class TracingService(Service):
                 self.worker_task.cancel()
                 self.worker_task = None
 
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.exception("Error stopping tracing service")
 
     def _reset_io(self):
@@ -109,7 +109,7 @@ class TracingService(Service):
             self._initialize_langsmith_tracer()
             self._initialize_langwatch_tracer()
             self._initialize_langfuse_tracer()
-        except Exception:
+        except Exception:  # noqa: BLE001
             logger.opt(exception=True).debug("Error initializing tracers")
 
     def _initialize_langsmith_tracer(self):
@@ -166,7 +166,7 @@ class TracingService(Service):
                 continue
             try:
                 tracer.add_trace(trace_id, trace_name, trace_type, inputs, metadata, vertex)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error starting trace {trace_name}")
 
     def _end_traces(self, trace_id: str, trace_name: str, error: Exception | None = None):
@@ -181,7 +181,7 @@ class TracingService(Service):
                     error=error,
                     logs=self._logs[trace_name],
                 )
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error ending trace {trace_name}")
 
     def _end_all_traces(self, outputs: dict, error: Exception | None = None):
@@ -190,7 +190,7 @@ class TracingService(Service):
                 continue
             try:
                 tracer.end(self.inputs, outputs=self.outputs, error=error, metadata=outputs)
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception("Error ending all traces")
 
     async def end(self, outputs: dict, error: Exception | None = None):

src/backend/base/langflow/services/utils.py

@@ -50,13 +50,14 @@ def get_or_create_super_user(session: Session, username, password, is_default):
         logger.debug("Creating superuser.")
     try:
         return create_super_user(username, password, db=session)
-    except Exception as exc:
+    except Exception as exc:  # noqa: BLE001
         if "UNIQUE constraint failed: user.username" in str(exc):
             # This is to deal with workers running this
             # at startup and trying to create the superuser
             # at the same time.
-            logger.debug("Superuser already exists.")
+            logger.opt(exception=True).debug("Superuser already exists.")
             return None
+        logger.opt(exception=True).debug("Error creating superuser.")
 
 
 def setup_superuser(settings_service, session: Session):
@@ -117,13 +118,13 @@ async def teardown_services():
     """
     try:
         teardown_superuser(get_settings_service(), next(get_session()))
-    except Exception as exc:
+    except Exception as exc:  # noqa: BLE001
         logger.exception(exc)
     try:
         from langflow.services.manager import service_manager
 
         await service_manager.teardown()
-    except Exception as exc:
+    except Exception as exc:  # noqa: BLE001
         logger.exception(exc)
 
 

src/backend/base/langflow/services/variable/kubernetes.py

@@ -47,7 +47,7 @@ class KubernetesSecretService(VariableService, Service):
                     name=secret_name,
                     data=variables,
                 )
-            except Exception:
+            except Exception:  # noqa: BLE001
                 logger.exception(f"Error creating {var} variable")
 
         else:

src/backend/base/langflow/services/variable/service.py

@@ -62,7 +62,7 @@ class DatabaseVariableService(VariableService, Service):
                                 _type=CREDENTIAL_TYPE,
                                 session=session,
                             )
-                        except Exception:
+                        except Exception:  # noqa: BLE001
                             logger.exception(f"Error creating {var} variable")
 
         else:

src/backend/base/langflow/utils/async_helpers.py

@@ -22,7 +22,7 @@ def run_in_thread(coro):
         nonlocal result, exception
         try:
             result = asyncio.run(coro)
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             exception = e
 
     thread = threading.Thread(target=target)

src/backend/base/langflow/utils/util.py

@@ -51,7 +51,8 @@ def build_template_from_function(name: str, type_to_loader_dict: dict, add_funct
                             variables[class_field_items]["default"] = get_default_factory(
                                 module=_class.__base__.__module__, function=value_
                             )
-                        except Exception:
+                        except Exception:  # noqa: BLE001
+                            logger.opt(exception=True).debug(f"Error getting default factory for {value_}")
                             variables[class_field_items]["default"] = None
                     elif name_ != "name":
                         variables[class_field_items][name_] = value_

src/backend/base/langflow/utils/validate.py

@@ -4,6 +4,7 @@ import importlib
 from types import FunctionType
 from typing import Optional, Union
 
+from loguru import logger
 from pydantic import ValidationError
 
 from langflow.field_typing.constants import CUSTOM_COMPONENT_SUPPORTED_TYPES
@@ -25,7 +26,8 @@ def validate_code(code):
     # Parse the code string into an abstract syntax tree (AST)
     try:
         tree = ast.parse(code)
-    except Exception as e:
+    except Exception as e:  # noqa: BLE001
+        logger.opt(exception=True).debug("Error parsing code")
         errors["function"]["errors"].append(str(e))
         return errors
 
@@ -48,7 +50,8 @@ def validate_code(code):
             code_obj = compile(ast.Module(body=[node], type_ignores=[]), "<string>", "exec")
             try:
                 exec(code_obj)
-            except Exception as e:
+            except Exception as e:  # noqa: BLE001
+                logger.opt(exception=True).debug("Error executing function code")
                 errors["function"]["errors"].append(str(e))
 
     # Return the errors dictionary

src/backend/base/langflow/utils/version.py

@@ -82,8 +82,8 @@ def fetch_latest_version(package_name: str, include_prerelease: bool) -> str | N
             return None  # Handle case where no valid versions are found
         return max(valid_versions, key=lambda v: pkg_version.parse(v))
 
-    except Exception as e:
+    except Exception:  # noqa: BLE001
-        logger.exception(e)
+        logger.exception("Error fetching latest version")
         return None
 
 

src/backend/base/pyproject.toml

@@ -56,7 +56,6 @@ ignore = [
     # Rules that are TODOs
     "ANN",
     "ARG",
-    "BLE",
     "D",
     "DOC",
     "EXE",