From a7e375fdbff218732a58551beea2c93eb2d0c524 Mon Sep 17 00:00:00 2001
From: wyzula-jan <jan.wyzula@psi.ch>
Date: Mon, 16 Mar 2026 13:26:46 +0100
Subject: [PATCH] fix(device_manage_view): lazy imports

---
 .../device_manager_display_widget.py          | 34 ++++++++++++-------
 .../device_manager_view.py                    |  9 +++--
 .../device_manager_widget.py                  |  9 +++--
 3 files changed, 34 insertions(+), 18 deletions(-)

diff --git a/bec_widgets/applications/views/device_manager_view/device_manager_display_widget.py b/bec_widgets/applications/views/device_manager_view/device_manager_display_widget.py
index 3fd41bb8..f7941d67 100644
--- a/bec_widgets/applications/views/device_manager_view/device_manager_display_widget.py
+++ b/bec_widgets/applications/views/device_manager_view/device_manager_display_widget.py
@@ -13,6 +13,7 @@ from bec_lib.file_utils import DeviceConfigWriter
 from bec_lib.logger import bec_logger
 from bec_lib.messages import ConfigAction, ScanStatusMessage
 from bec_lib.plugin_helper import plugin_package_name, plugin_repo_path
+from bec_lib.utils.import_utils import lazy_import_from
 from bec_qthemes import apply_theme, material_icon
 from qtpy.QtCore import QMetaObject, Qt, QThreadPool, Signal
 from qtpy.QtGui import QColor
@@ -26,15 +27,6 @@ from qtpy.QtWidgets import (
     QWidget,
 )
 
-from bec_widgets.applications.views.device_manager_view.device_manager_dialogs.config_choice_dialog import (
-    ConfigChoiceDialog,
-)
-from bec_widgets.applications.views.device_manager_view.device_manager_dialogs.device_form_dialog import (
-    DeviceFormDialog,
-)
-from bec_widgets.applications.views.device_manager_view.device_manager_dialogs.upload_redis_dialog import (
-    UploadRedisDialog,
-)
 from bec_widgets.utils.colors import get_accent_colors
 from bec_widgets.utils.error_popups import SafeSlot
 from bec_widgets.utils.toolbars.actions import MaterialIconAction
@@ -47,9 +39,6 @@ from bec_widgets.widgets.control.device_manager.components.device_table.device_t
 )
 from bec_widgets.widgets.control.device_manager.components.dm_config_view import DMConfigView
 from bec_widgets.widgets.control.device_manager.components.dm_docstring_view import DocstringView
-from bec_widgets.widgets.control.device_manager.components.ophyd_validation.ophyd_validation import (
-    OphydValidation,
-)
 from bec_widgets.widgets.control.device_manager.components.ophyd_validation.ophyd_validation_utils import (
     ConfigStatus,
     ConnectionStatus,
@@ -65,8 +54,29 @@ from bec_widgets.widgets.utility.spinner.spinner import SpinnerWidget
 if TYPE_CHECKING:  # pragma: no cover
     from bec_lib.client import BECClient
 
+    from bec_widgets.applications.views.device_manager_view.device_manager_dialogs.upload_redis_dialog import (
+        UploadRedisDialog,
+    )
+
 logger = bec_logger.logger
 
+ConfigChoiceDialog = lazy_import_from(
+    "bec_widgets.applications.views.device_manager_view.device_manager_dialogs.config_choice_dialog",
+    ("ConfigChoiceDialog",),
+)
+DeviceFormDialog = lazy_import_from(
+    "bec_widgets.applications.views.device_manager_view.device_manager_dialogs.device_form_dialog",
+    ("DeviceFormDialog",),
+)
+UploadRedisDialog = lazy_import_from(
+    "bec_widgets.applications.views.device_manager_view.device_manager_dialogs.upload_redis_dialog",
+    ("UploadRedisDialog",),
+)
+OphydValidation = lazy_import_from(
+    "bec_widgets.widgets.control.device_manager.components.ophyd_validation.ophyd_validation",
+    ("OphydValidation",),
+)
+
 _yes_no_question = partial(
     QMessageBox.question,
     buttons=QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No,
diff --git a/bec_widgets/applications/views/device_manager_view/device_manager_view.py b/bec_widgets/applications/views/device_manager_view/device_manager_view.py
index 79770847..36491fca 100644
--- a/bec_widgets/applications/views/device_manager_view/device_manager_view.py
+++ b/bec_widgets/applications/views/device_manager_view/device_manager_view.py
@@ -1,14 +1,17 @@
 """Module for Device Manager View."""
 
+from bec_lib.utils.import_utils import lazy_import_from
 from qtpy.QtCore import QRect
 from qtpy.QtWidgets import QWidget
 
-from bec_widgets.applications.views.device_manager_view.device_manager_widget import (
-    DeviceManagerWidget,
-)
 from bec_widgets.applications.views.view import ViewBase, ViewTourSteps
 from bec_widgets.utils.error_popups import SafeSlot
 
+DeviceManagerWidget = lazy_import_from(
+    "bec_widgets.applications.views.device_manager_view.device_manager_widget",
+    ("DeviceManagerWidget",),
+)
+
 
 class DeviceManagerView(ViewBase):
     """
diff --git a/bec_widgets/applications/views/device_manager_view/device_manager_widget.py b/bec_widgets/applications/views/device_manager_view/device_manager_widget.py
index d6201500..0658abcf 100644
--- a/bec_widgets/applications/views/device_manager_view/device_manager_widget.py
+++ b/bec_widgets/applications/views/device_manager_view/device_manager_widget.py
@@ -6,15 +6,18 @@ import os
 
 from bec_lib.bec_yaml_loader import yaml_load
 from bec_lib.logger import bec_logger
+from bec_lib.utils.import_utils import lazy_import_from
 from bec_qthemes import material_icon
 from qtpy import QtCore, QtWidgets
 
-from bec_widgets.applications.views.device_manager_view.device_manager_display_widget import (
-    DeviceManagerDisplayWidget,
-)
 from bec_widgets.utils.bec_widget import BECWidget
 from bec_widgets.utils.error_popups import SafeSlot
 
+DeviceManagerDisplayWidget = lazy_import_from(
+    "bec_widgets.applications.views.device_manager_view.device_manager_display_widget",
+    ("DeviceManagerDisplayWidget",),
+)
+
 logger = bec_logger.logger