Cleanup: defer imports on startup

intern/cycles/blender/addon/ui.py

@@ -6,7 +6,6 @@ from __future__ import annotations
 
 import bpy
 from bpy.app.translations import contexts as i18n_contexts
-from bpy_extras.node_utils import find_node_input
 from bl_ui.utils import PresetPanel
 
 from bpy.types import Panel, Menu
@@ -1557,6 +1556,8 @@ class CYCLES_OBJECT_PT_visibility_culling(CyclesButtonsPanel, Panel):
 
 
 def panel_node_draw(layout, id_data, output_type, input_name):
+    from bpy_extras.node_utils import find_node_input
+
     if not id_data.use_nodes:
         layout.operator("cycles.use_shading_nodes", icon='NODETREE')
         return False

scripts/addons_core/pose_library/operators.py

@@ -30,7 +30,6 @@ from bpy.types import (
     Object,
     Operator,
 )
-from bpy_extras import asset_utils
 from bpy.app.translations import pgettext_tip as tip_
 
 
@@ -257,6 +256,8 @@ class POSELIB_OT_paste_asset(Operator):
 
     @classmethod
     def poll(cls, context: Context) -> bool:
+        from bpy_extras import asset_utils
+
         if not asset_utils.SpaceAssetInfo.is_asset_browser(context.space_data):
             cls.poll_message_set("Current editor is not an asset browser")
             return False

scripts/startup/bl_operators/connect_to_output.py

@@ -5,7 +5,6 @@
 import bpy
 from bpy.types import Operator
 from bpy.props import BoolProperty
-from bpy_extras.node_utils import find_base_socket_type, connect_sockets
 from bpy.app.translations import pgettext_data as data_
 
 from .node_editor.node_functions import (
@@ -206,6 +205,8 @@ class NODE_OT_connect_to_output(Operator, NodeEditorBase):
 
     def create_links(self, path, node, active_node_socket_id, socket_type):
         """Create links at each step in the node group path."""
+        from bpy_extras.node_utils import connect_sockets
+
         path = list(reversed(path))
         # Starting from the level of the active node.
         for path_index, path_element in enumerate(path[:-1]):
@@ -240,6 +241,11 @@ class NODE_OT_connect_to_output(Operator, NodeEditorBase):
                 self.remove_socket(tree, socket)
 
     def invoke(self, context, event):
+        from bpy_extras.node_utils import (
+            find_base_socket_type,
+            connect_sockets,
+        )
+
         space = context.space_data
         # Ignore operator when running in wrong context.
         if self.run_in_geometry_nodes != (space.tree_type == 'GeometryNodeTree'):

scripts/startup/bl_operators/image_as_planes.py

@@ -31,7 +31,6 @@ from bpy_extras.object_utils import (
     world_to_camera_view,
 )
 
-from bpy_extras.image_utils import load_image
 from bpy_extras.io_utils import ImportHelper
 
 # -----------------------------------------------------------------------------
@@ -131,6 +130,7 @@ def load_images(filenames, directory, force_reload=False, frame_start=1, find_se
     """
     import os
     from itertools import repeat
+    from bpy_extras.image_utils import load_image
 
     if find_sequences:  # If finding sequences, we need some pre-processing first.
         file_iter = find_image_sequences(filenames)