Preferences window lags with add-ons preferences UI raises an exception #66093

New Issue

Bohdan Lvov · 2019-06-25T00:39:29+02:00

Bohdan Lvov commented

2019-06-25 00:39:29 +02:00

System Information
Operating system: Windows 10 1903
Graphics card: GTX970

Blender Version
Broken: blender-2.80-9c5d54bfaf48-win64
Worked:blender-2.80-8ac0fef4dfd1-win64

Short description of error

When you click on a triangle in the addons list which is corresponds to an addon which contains VISIBLE_IPO_ON in code, it starts to incredibly lag. Seriously, one frame per second or two. Everything is quick and snappy until you press that goddam triangle. After that whole Preferences window behave like this till the restart of Blender. Other windows are unaffected.
Observe:
https://www.youtube.com/watch?v=9fObpt0L8B0

In a log I can see a long and sad error: Traceback (most recent call last):

File "C:\Users\ostap\AppData\Roaming\Blender Foundation\Blender\2.80\scripts\addons\DECALmachine\ui\UILists.py", line 16, in draw_item
  row.prop(item, "isvisible", text="", icon=isvisibleicon, emboss=False)

TypeError: UILayout.prop(): error with keyword argument "icon" - enum "VISIBLE_IPO_ON" not found in ('NONE', 'QUESTION', 'ERROR', 'CANCEL', 'TRIA_RIGHT', 'TRIA_DOWN', 'TRIA_LEFT', 'TRIA_UP', 'ARROW_LEFTRIGHT', 'PLUS', 'DISCLOSURE_TRI_RIGHT', 'DISCLOSURE_TRI_DOWN', 'RADIOBUT_OFF', 'RADIOBUT_ON', 'MENU_PANEL', 'BLENDER', 'GRIP', 'DOT', 'COLLAPSEMENU', 'X', 'DUPLICATE', 'TRASH', 'COLLECTION_NEW', 'NODE', 'NODE_SEL', 'WINDOW', 'WORKSPACE', 'RIGHTARROW_THIN', 'BORDERMOVE', 'VIEWZOOM', 'ADD', 'REMOVE', 'PANEL_CLOSE', 'COPY_ID', 'EYEDROPPER', 'AUTO', 'CHECKBOX_DEHLT', 'CHECKBOX_HLT', 'UNLOCKED', 'LOCKED', 'UNPINNED', 'PINNED', 'SCREEN_BACK', 'RIGHTARROW', 'DOWNARROW_HLT', 'FCURVE_SNAPSHOT', 'OBJECT_HIDDEN', 'PLUGIN', 'HELP', 'GHOST_ENABLED', 'COLOR', 'UNLINKED', 'LINKED', 'HAND', 'ZOOM_ALL', 'ZOOM_SELECTED', 'ZOOM_PREVIOUS', 'ZOOM_IN', 'ZOOM_OUT', 'DRIVER_DISTANCE', 'DRIVER_ROTATIONAL_DIFFERENCE', 'DRIVER_TRANSFORM', 'FREEZE', 'STYLUS_PRESSURE', 'GHOST_DISABLED', 'FILE_NEW', 'FILE_TICK', 'QUIT', 'URL', 'RECOVER_LAST', 'THREE_DOTS', 'FULLSCREEN_ENTER', 'FULLSCREEN_EXIT', 'LIGHT', 'MATERIAL', 'TEXTURE', 'ANIM', 'WORLD', 'SCENE', 'OUTPUT', 'SCRIPT', 'PARTICLES', 'PHYSICS', 'SPEAKER', 'TOOL_SETTINGS', 'SHADERFX', 'MODIFIER', 'BLANK1', 'FAKE_USER_OFF', 'FAKE_USER_ON', 'VIEW3D', 'GRAPH', 'OUTLINER', 'PROPERTIES', 'FILEBROWSER', 'IMAGE', 'INFO', 'SEQUENCE', 'TEXT', 'SOUND', 'ACTION', 'NLA', 'PREFERENCES', 'TIME', 'NODETREE', 'CONSOLE', 'TRACKER', 'ASSET_MANAGER', 'NODE_COMPOSITING', 'NODE_TEXTURE', 'NODE_MATERIAL', 'UV', 'OBJECT_DATAMODE', 'EDITMODE_HLT', 'UV_DATA', 'VPAINT_HLT', 'TPAINT_HLT', 'WPAINT_HLT', 'SCULPTMODE_HLT', 'POSE_HLT', 'PARTICLEMODE', 'TRACKING', 'TRACKING_BACKWARDS', 'TRACKING_FORWARDS', 'TRACKING_BACKWARDS_SINGLE', 'TRACKING_FORWARDS_SINGLE', 'TRACKING_CLEAR_BACKWARDS', 'TRACKING_CLEAR_FORWARDS', 'TRACKING_REFINE_BACKWARDS', 'TRACKING_REFINE_FORWARDS', 'SCENE_DATA', 'RENDERLAYERS', 'WORLD_DATA', 'OBJECT_DATA', 'MESH_DATA', 'CURVE_DATA', 'META_DATA', 'LATTICE_DATA', 'LIGHT_DATA', 'MATERIAL_DATA', 'TEXTURE_DATA', 'ANIM_DATA', 'CAMERA_DATA', 'PARTICLE_DATA', 'LIBRARY_DATA_DIRECT', 'GROUP', 'ARMATURE_DATA', 'COMMUNITY', 'BONE_DATA', 'CONSTRAINT', 'SHAPEKEY_DATA', 'CONSTRAINT_BONE', 'CAMERA_STEREO', 'PACKAGE', 'UGLYPACKAGE', 'EXPERIMENTAL', 'BRUSH_DATA', 'IMAGE_DATA', 'FILE', 'FCURVE', 'FONT_DATA', 'RENDER_RESULT', 'SURFACE_DATA', 'EMPTY_DATA', 'PRESET', 'RENDER_ANIMATION', 'RENDER_STILL', 'LIBRARY_DATA_BROKEN', 'BOIDS', 'STRANDS', 'LIBRARY_DATA_INDIRECT', 'GREASEPENCIL', 'LINE_DATA', 'LIBRARY_DATA_OVERRIDE', 'GROUP_BONE', 'GROUP_VERTEX', 'GROUP_VCOL', 'GROUP_UVS', 'FACE_MAPS', 'RNA', 'RNA_ADD', 'MOUSE_LMB', 'MOUSE_MMB', 'MOUSE_RMB', 'MOUSE_MOVE', 'MOUSE_LMB_DRAG', 'MOUSE_MMB_DRAG', 'MOUSE_RMB_DRAG', 'PRESET_NEW', 'DECORATE', 'DECORATE_KEYFRAME', 'DECORATE_ANIMATE', 'DECORATE_DRIVER', 'DECORATE_LINKED', 'DECORATE_LIBRARY_OVERRIDE', 'DECORATE_UNLOCKED', 'DECORATE_LOCKED', 'DECORATE_OVERRIDE', 'TRACKER_DATA', 'HEART', 'ORPHAN_DATA', 'USER', 'SYSTEM', 'SETTINGS', 'OUTLINER_OB_EMPTY', 'OUTLINER_OB_MESH', 'OUTLINER_OB_CURVE', 'OUTLINER_OB_LATTICE', 'OUTLINER_OB_META', 'OUTLINER_OB_LIGHT', 'OUTLINER_OB_CAMERA', 'OUTLINER_OB_ARMATURE', 'OUTLINER_OB_FONT', 'OUTLINER_OB_SURFACE', 'OUTLINER_OB_SPEAKER', 'OUTLINER_OB_FORCE_FIELD', 'OUTLINER_OB_GROUP_INSTANCE', 'OUTLINER_OB_GREASEPENCIL', 'OUTLINER_OB_LIGHTPROBE', 'OUTLINER_OB_IMAGE', 'RESTRICT_COLOR_OFF', 'RESTRICT_COLOR_ON', 'HIDE_ON', 'HIDE_OFF', 'RESTRICT_SELECT_ON', 'RESTRICT_SELECT_OFF', 'RESTRICT_RENDER_ON', 'RESTRICT_RENDER_OFF', 'RESTRICT_INSTANCED_OFF', 'OUTLINER_DATA_EMPTY', 'OUTLINER_DATA_MESH', 'OUTLINER_DATA_CURVE', 'OUTLINER_DATA_LATTICE', 'OUTLINER_DATA_META', 'OUTLINER_DATA_LIGHT', 'OUTLINER_DATA_CAMERA', 'OUTLINER_DATA_ARMATURE', 'OUTLINER_DATA_FONT', 'OUTLINER_DATA_SURFACE', 'OUTLINER_DATA_SPEAKER', 'OUTLINER_DATA_LIGHTPROBE', 'OUTLINER_DATA_GP_LAYER', 'OUTLINER_DATA_GREASEPENCIL', 'GP_SELECT_POINTS', 'GP_SELECT_STROKES', 'GP_MULTIFRAME_EDITING', 'GP_ONLY_SELECTED', 'GP_SELECT_BETWEEN_STROKES', 'MODIFIER_OFF', 'MODIFIER_ON', 'ONIONSKIN_OFF', 'ONIONSKIN_ON', 'RESTRICT_VIEW_ON', 'RESTRICT_VIEW_OFF', 'RESTRICT_INSTANCED_ON', 'MESH_PLANE', 'MESH_CUBE', 'MESH_CIRCLE', 'MESH_UVSPHERE', 'MESH_ICOSPHERE', 'MESH_GRID', 'MESH_MONKEY', 'MESH_CYLINDER', 'MESH_TORUS', 'MESH_CONE', 'MESH_CAPSULE', 'EMPTY_SINGLE_ARROW', 'LIGHT_POINT', 'LIGHT_SUN', 'LIGHT_SPOT', 'LIGHT_HEMI', 'LIGHT_AREA', 'CUBE', 'SPHERE', 'CONE', 'META_PLANE', 'META_CUBE', 'META_BALL', 'META_ELLIPSOID', 'META_CAPSULE', 'SURFACE_NCURVE', 'SURFACE_NCIRCLE', 'SURFACE_NSURFACE', 'SURFACE_NCYLINDER', 'SURFACE_NSPHERE', 'SURFACE_NTORUS', 'EMPTY_AXIS', 'STROKE', 'EMPTY_ARROWS', 'CURVE_BEZCURVE', 'CURVE_BEZCIRCLE', 'CURVE_NCURVE', 'CURVE_NCIRCLE', 'CURVE_PATH', 'LIGHTPROBE_CUBEMAP', 'LIGHTPROBE_PLANAR', 'LIGHTPROBE_GRID', 'COLOR_RED', 'COLOR_GREEN', 'COLOR_BLUE', 'TRIA_RIGHT_BAR', 'TRIA_DOWN_BAR', 'TRIA_LEFT_BAR', 'TRIA_UP_BAR', 'FORCE_FORCE', 'FORCE_WIND', 'FORCE_VORTEX', 'FORCE_MAGNETIC', 'FORCE_HARMONIC', 'FORCE_CHARGE', 'FORCE_LENNARDJONES', 'FORCE_TEXTURE', 'FORCE_CURVE', 'FORCE_BOID', 'FORCE_TURBULENCE', 'FORCE_DRAG', 'FORCE_SMOKEFLOW', 'RIGID_BODY', 'RIGID_BODY_CONSTRAINT', 'IMAGE_PLANE', 'IMAGE_BACKGROUND', 'IMAGE_REFERENCE', 'NODE_INSERT_ON', 'NODE_INSERT_OFF', 'NODE_TOP', 'NODE_SIDE', 'NODE_CORNER', 'SELECT_SET', 'SELECT_EXTEND', 'SELECT_SUBTRACT', 'SELECT_INTERSECT', 'SELECT_DIFFERENCE', 'ALIGN_LEFT', 'ALIGN_CENTER', 'ALIGN_RIGHT', 'ALIGN_JUSTIFY', 'ALIGN_FLUSH', 'ALIGN_TOP', 'ALIGN_MIDDLE', 'ALIGN_BOTTOM', 'BOLD', 'ITALIC', 'UNDERLINE', 'SMALL_CAPS', 'HOLDOUT_OFF', 'HOLDOUT_ON', 'INDIRECT_ONLY_OFF', 'INDIRECT_ONLY_ON', 'CON_CAMERASOLVER', 'CON_FOLLOWTRACK', 'CON_OBJECTSOLVER', 'CON_LOCLIKE', 'CON_ROTLIKE', 'CON_SIZELIKE', 'CON_TRANSLIKE', 'CON_DISTLIMIT', 'CON_LOCLIMIT', 'CON_ROTLIMIT', 'CON_SIZELIMIT', 'CON_SAMEVOL', 'CON_TRANSFORM', 'CON_TRANSFORM_CACHE', 'CON_CLAMPTO', 'CON_KINEMATIC', 'CON_LOCKTRACK', 'CON_SPLINEIK', 'CON_STRETCHTO', 'CON_TRACKTO', 'CON_ARMATURE', 'CON_CHILDOF', 'CON_FLOOR', 'CON_FOLLOWPATH', 'CON_PIVOT', 'CON_SHRINKWRAP', 'MODIFIER_DATA', 'MOD_WAVE', 'MOD_BUILD', 'MOD_DECIM', 'MOD_MIRROR', 'MOD_SOFT', 'MOD_SUBSURF', 'HOOK', 'MOD_PHYSICS', 'MOD_PARTICLES', 'MOD_BOOLEAN', 'MOD_EDGESPLIT', 'MOD_ARRAY', 'MOD_UVPROJECT', 'MOD_DISPLACE', 'MOD_CURVE', 'MOD_LATTICE', 'MOD_TINT', 'MOD_ARMATURE', 'MOD_SHRINKWRAP', 'MOD_CAST', 'MOD_MESHDEFORM', 'MOD_BEVEL', 'MOD_SMOOTH', 'MOD_SIMPLEDEFORM', 'MOD_MASK', 'MOD_CLOTH', 'MOD_EXPLODE', 'MOD_FLUIDSIM', 'MOD_MULTIRES', 'MOD_SMOKE', 'MOD_SOLIDIFY', 'MOD_SCREW', 'MOD_VERTEX_WEIGHT', 'MOD_DYNAMICPAINT', 'MOD_REMESH', 'MOD_OCEAN', 'MOD_WARP', 'MOD_SKIN', 'MOD_TRIANGULATE', 'MOD_WIREFRAME', 'MOD_DATA_TRANSFER', 'MOD_NORMALEDIT', 'MOD_PARTICLE_INSTANCE', 'MOD_HUE_SATURATION', 'MOD_NOISE', 'MOD_OFFSET', 'MOD_SIMPLIFY', 'MOD_THICKNESS', 'MOD_INSTANCE', 'MOD_TIME', 'MOD_OPACITY', 'REC', 'PLAY', 'FF', 'REW', 'PAUSE', 'PREV_KEYFRAME', 'NEXT_KEYFRAME', 'PLAY_SOUND', 'PLAY_REVERSE', 'PREVIEW_RANGE', 'ACTION_TWEAK', 'PMARKER_ACT', 'PMARKER_SEL', 'PMARKER', 'MARKER_HLT', 'MARKER', 'KEYFRAME_HLT', 'KEYFRAME', 'KEYINGSET', 'KEY_DEHLT', 'KEY_HLT', 'MUTE_IPO_OFF', 'MUTE_IPO_ON', 'DRIVER', 'SOLO_OFF', 'SOLO_ON', 'FRAME_PREV', 'FRAME_NEXT', 'NLA_PUSHDOWN', 'IPO_CONSTANT', 'IPO_LINEAR', 'IPO_BEZIER', 'IPO_SINE', 'IPO_QUAD', 'IPO_CUBIC', 'IPO_QUART', 'IPO_QUINT', 'IPO_EXPO', 'IPO_CIRC', 'IPO_BOUNCE', 'IPO_ELASTIC', 'IPO_BACK', 'IPO_EASE_IN', 'IPO_EASE_OUT', 'IPO_EASE_IN_OUT', 'NORMALIZE_FCURVES', 'VERTEXSEL', 'EDGESEL', 'FACESEL', 'CURSOR', 'PIVOT_BOUNDBOX', 'PIVOT_CURSOR', 'PIVOT_INDIVIDUAL', 'PIVOT_MEDIAN', 'PIVOT_ACTIVE', 'CENTER_ONLY', 'ROOTCURVE', 'SMOOTHCURVE', 'SPHERECURVE', 'INVERSESQUARECURVE', 'SHARPCURVE', 'LINCURVE', 'NOCURVE', 'RNDCURVE', 'PROP_OFF', 'PROP_ON', 'PROP_CON', 'PROP_PROJECTED', 'PARTICLE_POINT', 'PARTICLE_TIP', 'PARTICLE_PATH', 'SNAP_OFF', 'SNAP_ON', 'SNAP_NORMAL', 'SNAP_GRID', 'SNAP_VERTEX', 'SNAP_EDGE', 'SNAP_FACE', 'SNAP_VOLUME', 'SNAP_INCREMENT', 'STICKY_UVS_LOC', 'STICKY_UVS_DISABLE', 'STICKY_UVS_VERT', 'CLIPUV_DEHLT', 'CLIPUV_HLT', 'SNAP_PEEL_OBJECT', 'GRID', 'OBJECT_ORIGIN', 'ORIENTATION_GLOBAL', 'ORIENTATION_GIMBAL', 'ORIENTATION_LOCAL', 'ORIENTATION_NORMAL', 'ORIENTATION_VIEW', 'COPYDOWN', 'PASTEDOWN', 'PASTEFLIPUP', 'PASTEFLIPDOWN', 'VIS_SEL_11', 'VIS_SEL_10', 'VIS_SEL_01', 'VIS_SEL_00', 'AUTOMERGE_OFF', 'AUTOMERGE_ON', 'UV_VERTEXSEL', 'UV_EDGESEL', 'UV_FACESEL', 'UV_ISLANDSEL', 'UV_SYNC_SELECT', 'GIZMO', 'ORIENTATION_CURSOR', 'NORMALS_VERTEX', 'NORMALS_FACE', 'NORMALS_VERTEX_FACE', 'SHADING_BBOX', 'SHADING_WIRE', 'SHADING_SOLID', 'SHADING_RENDERED', 'SHADING_TEXTURE', 'OVERLAY', 'XRAY', 'LOCKVIEW_OFF', 'LOCKVIEW_ON', 'AXIS_SIDE', 'AXIS_FRONT', 'AXIS_TOP', 'NDOF_DOM', 'NDOF_TURN', 'NDOF_FLY', 'NDOF_TRANS', 'LAYER_USED', 'LAYER_ACTIVE', 'SORTALPHA', 'SORTBYEXT', 'SORTTIME', 'SORTSIZE', 'SHORTDISPLAY', 'LONGDISPLAY', 'IMGDISPLAY', 'BOOKMARKS', 'FONTPREVIEW', 'FILTER', 'NEWFOLDER', 'FILE_PARENT', 'FILE_REFRESH', 'FILE_FOLDER', 'FILE_BLANK', 'FILE_BLEND', 'FILE_IMAGE', 'FILE_MOVIE', 'FILE_SCRIPT', 'FILE_SOUND', 'FILE_FONT', 'FILE_TEXT', 'SORT_DESC', 'SORT_ASC', 'LINK_BLEND', 'APPEND_BLEND', 'IMPORT', 'EXPORT', 'LOOP_BACK', 'LOOP_FORWARDS', 'BACK', 'FORWARD', 'FILE_CACHE', 'FILE_VOLUME', 'FILE_3D', 'FILE_HIDDEN', 'FILE_BACKUP', 'DISK_DRIVE', 'MATPLANE', 'MATSPHERE', 'MATCUBE', 'MONKEY', 'HAIR', 'ALIASED', 'ANTIALIASED', 'MAT_SPHERE_SKY', 'MATSHADERBALL', 'MATCLOTH', 'MATFLUID', 'WORDWRAP_OFF', 'WORDWRAP_ON', 'SYNTAX_OFF', 'SYNTAX_ON', 'LINENUMBERS_OFF', 'LINENUMBERS_ON', 'SCRIPTPLUGINS', 'SEQ_SEQUENCER', 'SEQ_PREVIEW', 'SEQ_LUMA_WAVEFORM', 'SEQ_CHROMA_SCOPE', 'SEQ_HISTOGRAM', 'SEQ_SPLITVIEW', 'IMAGE_RGB', 'IMAGE_RGB_ALPHA', 'IMAGE_ALPHA', 'IMAGE_ZDEPTH', 'VIEW_PERSPECTIVE', 'VIEW_ORTHO', 'VIEW_CAMERA', 'VIEW_PAN', 'VIEW_ZOOM', 'BRUSH_BLOB', 'BRUSH_BLUR', 'BRUSH_CLAY', 'BRUSH_CLAY_STRIPS', 'BRUSH_CLONE', 'BRUSH_CREASE', 'BRUSH_FILL', 'BRUSH_FLATTEN', 'BRUSH_GRAB', 'BRUSH_INFLATE', 'BRUSH_LAYER', 'BRUSH_MASK', 'BRUSH_MIX', 'BRUSH_NUDGE', 'BRUSH_PINCH', 'BRUSH_SCRAPE', 'BRUSH_SCULPT_DRAW', 'BRUSH_SMEAR', 'BRUSH_SMOOTH', 'BRUSH_SNAKE_HOOK', 'BRUSH_SOFTEN', 'BRUSH_TEXDRAW', 'BRUSH_TEXFILL', 'BRUSH_TEXMASK', 'BRUSH_THUMB', 'BRUSH_ROTATE', 'GPBRUSH_SMOOTH', 'GPBRUSH_THICKNESS', 'GPBRUSH_STRENGTH', 'GPBRUSH_GRAB', 'GPBRUSH_PUSH', 'GPBRUSH_TWIST', 'GPBRUSH_PINCH', 'GPBRUSH_RANDOMIZE', 'GPBRUSH_CLONE', 'GPBRUSH_WEIGHT', 'GPBRUSH_PENCIL', 'GPBRUSH_PEN', 'GPBRUSH_INK', 'GPBRUSH_INKNOISE', 'GPBRUSH_BLOCK', 'GPBRUSH_MARKER', 'GPBRUSH_FILL', 'GPBRUSH_ERASE_SOFT', 'GPBRUSH_ERASE_HARD', 'GPBRUSH_ERASE_STROKE', 'SMALL_TRI_RIGHT_VEC', 'KEYTYPE_KEYFRAME_VEC', 'KEYTYPE_BREAKDOWN_VEC', 'KEYTYPE_EXTREME_VEC', 'KEYTYPE_JITTER_VEC', 'KEYTYPE_MOVING_HOLD_VEC', 'HANDLETYPE_FREE_VEC', 'HANDLETYPE_ALIGNED_VEC', 'HANDLETYPE_VECTOR_VEC', 'HANDLETYPE_AUTO_VEC', 'HANDLETYPE_AUTO_CLAMP_VEC', 'COLORSET_01_VEC', 'COLORSET_02_VEC', 'COLORSET_03_VEC', 'COLORSET_04_VEC', 'COLORSET_05_VEC', 'COLORSET_06_VEC', 'COLORSET_07_VEC', 'COLORSET_08_VEC', 'COLORSET_09_VEC', 'COLORSET_10_VEC', 'COLORSET_11_VEC', 'COLORSET_12_VEC', 'COLORSET_13_VEC', 'COLORSET_14_VEC', 'COLORSET_15_VEC', 'COLORSET_16_VEC', 'COLORSET_17_VEC', 'COLORSET_18_VEC', 'COLORSET_19_VEC', 'COLORSET_20_VEC', 'EVENT_A', 'EVENT_B', 'EVENT_C', 'EVENT_D', 'EVENT_E', 'EVENT_F', 'EVENT_G', 'EVENT_H', 'EVENT_I', 'EVENT_J', 'EVENT_K', 'EVENT_L', 'EVENT_M', 'EVENT_N', 'EVENT_O', 'EVENT_P', 'EVENT_Q', 'EVENT_R', 'EVENT_S', 'EVENT_T', 'EVENT_U', 'EVENT_V', 'EVENT_W', 'EVENT_X', 'EVENT_Y', 'EVENT_Z', 'EVENT_SHIFT', 'EVENT_CTRL', 'EVENT_ALT', 'EVENT_OS', 'EVENT_F1', 'EVENT_F2', 'EVENT_F3', 'EVENT_F4', 'EVENT_F5', 'EVENT_F6', 'EVENT_F7', 'EVENT_F8', 'EVENT_F9', 'EVENT_F10', 'EVENT_F11', 'EVENT_F12', 'EVENT_ESC', 'EVENT_TAB', 'EVENT_PAGEUP', 'EVENT_PAGEDOWN', 'EVENT_RETURN')

And after changing VISIBLE_IPO_ON/OFF to HIDE_OFF/ON in the mentioned file issue disappears. Of course you may say that it's the issue with an un-updated addons. but that's weird. when Blender starts to misbehave instead of showing error message about the issue, isn't it?

Exact steps for others to reproduce the error

Open any scroll of the addon with VISIBLE_IPO_ON in it.
Enjoy the performance.

**System Information** Operating system: Windows 10 1903 Graphics card: GTX970 **Blender Version** Broken: blender-2.80-9c5d54bfaf48-win64 Worked:blender-2.80-8ac0fef4dfd1-win64 **Short description of error** When you click on a triangle in the addons list which is corresponds to an addon which contains VISIBLE_IPO_ON in code, it starts to incredibly lag. Seriously, one frame per second or two. Everything is quick and snappy until you press that goddam triangle. After that whole Preferences window behave like this till the restart of Blender. Other windows are unaffected. Observe: https://www.youtube.com/watch?v=9fObpt0L8B0 In a log I can see a long and sad error: Traceback (most recent call last): ``` File "C:\Users\ostap\AppData\Roaming\Blender Foundation\Blender\2.80\scripts\addons\DECALmachine\ui\UILists.py", line 16, in draw_item row.prop(item, "isvisible", text="", icon=isvisibleicon, emboss=False) ``` TypeError: UILayout.prop(): error with keyword argument "icon" - enum "VISIBLE_IPO_ON" not found in ('NONE', 'QUESTION', 'ERROR', 'CANCEL', 'TRIA_RIGHT', 'TRIA_DOWN', 'TRIA_LEFT', 'TRIA_UP', 'ARROW_LEFTRIGHT', 'PLUS', 'DISCLOSURE_TRI_RIGHT', 'DISCLOSURE_TRI_DOWN', 'RADIOBUT_OFF', 'RADIOBUT_ON', 'MENU_PANEL', 'BLENDER', 'GRIP', 'DOT', 'COLLAPSEMENU', 'X', 'DUPLICATE', 'TRASH', 'COLLECTION_NEW', 'NODE', 'NODE_SEL', 'WINDOW', 'WORKSPACE', 'RIGHTARROW_THIN', 'BORDERMOVE', 'VIEWZOOM', 'ADD', 'REMOVE', 'PANEL_CLOSE', 'COPY_ID', 'EYEDROPPER', 'AUTO', 'CHECKBOX_DEHLT', 'CHECKBOX_HLT', 'UNLOCKED', 'LOCKED', 'UNPINNED', 'PINNED', 'SCREEN_BACK', 'RIGHTARROW', 'DOWNARROW_HLT', 'FCURVE_SNAPSHOT', 'OBJECT_HIDDEN', 'PLUGIN', 'HELP', 'GHOST_ENABLED', 'COLOR', 'UNLINKED', 'LINKED', 'HAND', 'ZOOM_ALL', 'ZOOM_SELECTED', 'ZOOM_PREVIOUS', 'ZOOM_IN', 'ZOOM_OUT', 'DRIVER_DISTANCE', 'DRIVER_ROTATIONAL_DIFFERENCE', 'DRIVER_TRANSFORM', 'FREEZE', 'STYLUS_PRESSURE', 'GHOST_DISABLED', 'FILE_NEW', 'FILE_TICK', 'QUIT', 'URL', 'RECOVER_LAST', 'THREE_DOTS', 'FULLSCREEN_ENTER', 'FULLSCREEN_EXIT', 'LIGHT', 'MATERIAL', 'TEXTURE', 'ANIM', 'WORLD', 'SCENE', 'OUTPUT', 'SCRIPT', 'PARTICLES', 'PHYSICS', 'SPEAKER', 'TOOL_SETTINGS', 'SHADERFX', 'MODIFIER', 'BLANK1', 'FAKE_USER_OFF', 'FAKE_USER_ON', 'VIEW3D', 'GRAPH', 'OUTLINER', 'PROPERTIES', 'FILEBROWSER', 'IMAGE', 'INFO', 'SEQUENCE', 'TEXT', 'SOUND', 'ACTION', 'NLA', 'PREFERENCES', 'TIME', 'NODETREE', 'CONSOLE', 'TRACKER', 'ASSET_MANAGER', 'NODE_COMPOSITING', 'NODE_TEXTURE', 'NODE_MATERIAL', 'UV', 'OBJECT_DATAMODE', 'EDITMODE_HLT', 'UV_DATA', 'VPAINT_HLT', 'TPAINT_HLT', 'WPAINT_HLT', 'SCULPTMODE_HLT', 'POSE_HLT', 'PARTICLEMODE', 'TRACKING', 'TRACKING_BACKWARDS', 'TRACKING_FORWARDS', 'TRACKING_BACKWARDS_SINGLE', 'TRACKING_FORWARDS_SINGLE', 'TRACKING_CLEAR_BACKWARDS', 'TRACKING_CLEAR_FORWARDS', 'TRACKING_REFINE_BACKWARDS', 'TRACKING_REFINE_FORWARDS', 'SCENE_DATA', 'RENDERLAYERS', 'WORLD_DATA', 'OBJECT_DATA', 'MESH_DATA', 'CURVE_DATA', 'META_DATA', 'LATTICE_DATA', 'LIGHT_DATA', 'MATERIAL_DATA', 'TEXTURE_DATA', 'ANIM_DATA', 'CAMERA_DATA', 'PARTICLE_DATA', 'LIBRARY_DATA_DIRECT', 'GROUP', 'ARMATURE_DATA', 'COMMUNITY', 'BONE_DATA', 'CONSTRAINT', 'SHAPEKEY_DATA', 'CONSTRAINT_BONE', 'CAMERA_STEREO', 'PACKAGE', 'UGLYPACKAGE', 'EXPERIMENTAL', 'BRUSH_DATA', 'IMAGE_DATA', 'FILE', 'FCURVE', 'FONT_DATA', 'RENDER_RESULT', 'SURFACE_DATA', 'EMPTY_DATA', 'PRESET', 'RENDER_ANIMATION', 'RENDER_STILL', 'LIBRARY_DATA_BROKEN', 'BOIDS', 'STRANDS', 'LIBRARY_DATA_INDIRECT', 'GREASEPENCIL', 'LINE_DATA', 'LIBRARY_DATA_OVERRIDE', 'GROUP_BONE', 'GROUP_VERTEX', 'GROUP_VCOL', 'GROUP_UVS', 'FACE_MAPS', 'RNA', 'RNA_ADD', 'MOUSE_LMB', 'MOUSE_MMB', 'MOUSE_RMB', 'MOUSE_MOVE', 'MOUSE_LMB_DRAG', 'MOUSE_MMB_DRAG', 'MOUSE_RMB_DRAG', 'PRESET_NEW', 'DECORATE', 'DECORATE_KEYFRAME', 'DECORATE_ANIMATE', 'DECORATE_DRIVER', 'DECORATE_LINKED', 'DECORATE_LIBRARY_OVERRIDE', 'DECORATE_UNLOCKED', 'DECORATE_LOCKED', 'DECORATE_OVERRIDE', 'TRACKER_DATA', 'HEART', 'ORPHAN_DATA', 'USER', 'SYSTEM', 'SETTINGS', 'OUTLINER_OB_EMPTY', 'OUTLINER_OB_MESH', 'OUTLINER_OB_CURVE', 'OUTLINER_OB_LATTICE', 'OUTLINER_OB_META', 'OUTLINER_OB_LIGHT', 'OUTLINER_OB_CAMERA', 'OUTLINER_OB_ARMATURE', 'OUTLINER_OB_FONT', 'OUTLINER_OB_SURFACE', 'OUTLINER_OB_SPEAKER', 'OUTLINER_OB_FORCE_FIELD', 'OUTLINER_OB_GROUP_INSTANCE', 'OUTLINER_OB_GREASEPENCIL', 'OUTLINER_OB_LIGHTPROBE', 'OUTLINER_OB_IMAGE', 'RESTRICT_COLOR_OFF', 'RESTRICT_COLOR_ON', 'HIDE_ON', 'HIDE_OFF', 'RESTRICT_SELECT_ON', 'RESTRICT_SELECT_OFF', 'RESTRICT_RENDER_ON', 'RESTRICT_RENDER_OFF', 'RESTRICT_INSTANCED_OFF', 'OUTLINER_DATA_EMPTY', 'OUTLINER_DATA_MESH', 'OUTLINER_DATA_CURVE', 'OUTLINER_DATA_LATTICE', 'OUTLINER_DATA_META', 'OUTLINER_DATA_LIGHT', 'OUTLINER_DATA_CAMERA', 'OUTLINER_DATA_ARMATURE', 'OUTLINER_DATA_FONT', 'OUTLINER_DATA_SURFACE', 'OUTLINER_DATA_SPEAKER', 'OUTLINER_DATA_LIGHTPROBE', 'OUTLINER_DATA_GP_LAYER', 'OUTLINER_DATA_GREASEPENCIL', 'GP_SELECT_POINTS', 'GP_SELECT_STROKES', 'GP_MULTIFRAME_EDITING', 'GP_ONLY_SELECTED', 'GP_SELECT_BETWEEN_STROKES', 'MODIFIER_OFF', 'MODIFIER_ON', 'ONIONSKIN_OFF', 'ONIONSKIN_ON', 'RESTRICT_VIEW_ON', 'RESTRICT_VIEW_OFF', 'RESTRICT_INSTANCED_ON', 'MESH_PLANE', 'MESH_CUBE', 'MESH_CIRCLE', 'MESH_UVSPHERE', 'MESH_ICOSPHERE', 'MESH_GRID', 'MESH_MONKEY', 'MESH_CYLINDER', 'MESH_TORUS', 'MESH_CONE', 'MESH_CAPSULE', 'EMPTY_SINGLE_ARROW', 'LIGHT_POINT', 'LIGHT_SUN', 'LIGHT_SPOT', 'LIGHT_HEMI', 'LIGHT_AREA', 'CUBE', 'SPHERE', 'CONE', 'META_PLANE', 'META_CUBE', 'META_BALL', 'META_ELLIPSOID', 'META_CAPSULE', 'SURFACE_NCURVE', 'SURFACE_NCIRCLE', 'SURFACE_NSURFACE', 'SURFACE_NCYLINDER', 'SURFACE_NSPHERE', 'SURFACE_NTORUS', 'EMPTY_AXIS', 'STROKE', 'EMPTY_ARROWS', 'CURVE_BEZCURVE', 'CURVE_BEZCIRCLE', 'CURVE_NCURVE', 'CURVE_NCIRCLE', 'CURVE_PATH', 'LIGHTPROBE_CUBEMAP', 'LIGHTPROBE_PLANAR', 'LIGHTPROBE_GRID', 'COLOR_RED', 'COLOR_GREEN', 'COLOR_BLUE', 'TRIA_RIGHT_BAR', 'TRIA_DOWN_BAR', 'TRIA_LEFT_BAR', 'TRIA_UP_BAR', 'FORCE_FORCE', 'FORCE_WIND', 'FORCE_VORTEX', 'FORCE_MAGNETIC', 'FORCE_HARMONIC', 'FORCE_CHARGE', 'FORCE_LENNARDJONES', 'FORCE_TEXTURE', 'FORCE_CURVE', 'FORCE_BOID', 'FORCE_TURBULENCE', 'FORCE_DRAG', 'FORCE_SMOKEFLOW', 'RIGID_BODY', 'RIGID_BODY_CONSTRAINT', 'IMAGE_PLANE', 'IMAGE_BACKGROUND', 'IMAGE_REFERENCE', 'NODE_INSERT_ON', 'NODE_INSERT_OFF', 'NODE_TOP', 'NODE_SIDE', 'NODE_CORNER', 'SELECT_SET', 'SELECT_EXTEND', 'SELECT_SUBTRACT', 'SELECT_INTERSECT', 'SELECT_DIFFERENCE', 'ALIGN_LEFT', 'ALIGN_CENTER', 'ALIGN_RIGHT', 'ALIGN_JUSTIFY', 'ALIGN_FLUSH', 'ALIGN_TOP', 'ALIGN_MIDDLE', 'ALIGN_BOTTOM', 'BOLD', 'ITALIC', 'UNDERLINE', 'SMALL_CAPS', 'HOLDOUT_OFF', 'HOLDOUT_ON', 'INDIRECT_ONLY_OFF', 'INDIRECT_ONLY_ON', 'CON_CAMERASOLVER', 'CON_FOLLOWTRACK', 'CON_OBJECTSOLVER', 'CON_LOCLIKE', 'CON_ROTLIKE', 'CON_SIZELIKE', 'CON_TRANSLIKE', 'CON_DISTLIMIT', 'CON_LOCLIMIT', 'CON_ROTLIMIT', 'CON_SIZELIMIT', 'CON_SAMEVOL', 'CON_TRANSFORM', 'CON_TRANSFORM_CACHE', 'CON_CLAMPTO', 'CON_KINEMATIC', 'CON_LOCKTRACK', 'CON_SPLINEIK', 'CON_STRETCHTO', 'CON_TRACKTO', 'CON_ARMATURE', 'CON_CHILDOF', 'CON_FLOOR', 'CON_FOLLOWPATH', 'CON_PIVOT', 'CON_SHRINKWRAP', 'MODIFIER_DATA', 'MOD_WAVE', 'MOD_BUILD', 'MOD_DECIM', 'MOD_MIRROR', 'MOD_SOFT', 'MOD_SUBSURF', 'HOOK', 'MOD_PHYSICS', 'MOD_PARTICLES', 'MOD_BOOLEAN', 'MOD_EDGESPLIT', 'MOD_ARRAY', 'MOD_UVPROJECT', 'MOD_DISPLACE', 'MOD_CURVE', 'MOD_LATTICE', 'MOD_TINT', 'MOD_ARMATURE', 'MOD_SHRINKWRAP', 'MOD_CAST', 'MOD_MESHDEFORM', 'MOD_BEVEL', 'MOD_SMOOTH', 'MOD_SIMPLEDEFORM', 'MOD_MASK', 'MOD_CLOTH', 'MOD_EXPLODE', 'MOD_FLUIDSIM', 'MOD_MULTIRES', 'MOD_SMOKE', 'MOD_SOLIDIFY', 'MOD_SCREW', 'MOD_VERTEX_WEIGHT', 'MOD_DYNAMICPAINT', 'MOD_REMESH', 'MOD_OCEAN', 'MOD_WARP', 'MOD_SKIN', 'MOD_TRIANGULATE', 'MOD_WIREFRAME', 'MOD_DATA_TRANSFER', 'MOD_NORMALEDIT', 'MOD_PARTICLE_INSTANCE', 'MOD_HUE_SATURATION', 'MOD_NOISE', 'MOD_OFFSET', 'MOD_SIMPLIFY', 'MOD_THICKNESS', 'MOD_INSTANCE', 'MOD_TIME', 'MOD_OPACITY', 'REC', 'PLAY', 'FF', 'REW', 'PAUSE', 'PREV_KEYFRAME', 'NEXT_KEYFRAME', 'PLAY_SOUND', 'PLAY_REVERSE', 'PREVIEW_RANGE', 'ACTION_TWEAK', 'PMARKER_ACT', 'PMARKER_SEL', 'PMARKER', 'MARKER_HLT', 'MARKER', 'KEYFRAME_HLT', 'KEYFRAME', 'KEYINGSET', 'KEY_DEHLT', 'KEY_HLT', 'MUTE_IPO_OFF', 'MUTE_IPO_ON', 'DRIVER', 'SOLO_OFF', 'SOLO_ON', 'FRAME_PREV', 'FRAME_NEXT', 'NLA_PUSHDOWN', 'IPO_CONSTANT', 'IPO_LINEAR', 'IPO_BEZIER', 'IPO_SINE', 'IPO_QUAD', 'IPO_CUBIC', 'IPO_QUART', 'IPO_QUINT', 'IPO_EXPO', 'IPO_CIRC', 'IPO_BOUNCE', 'IPO_ELASTIC', 'IPO_BACK', 'IPO_EASE_IN', 'IPO_EASE_OUT', 'IPO_EASE_IN_OUT', 'NORMALIZE_FCURVES', 'VERTEXSEL', 'EDGESEL', 'FACESEL', 'CURSOR', 'PIVOT_BOUNDBOX', 'PIVOT_CURSOR', 'PIVOT_INDIVIDUAL', 'PIVOT_MEDIAN', 'PIVOT_ACTIVE', 'CENTER_ONLY', 'ROOTCURVE', 'SMOOTHCURVE', 'SPHERECURVE', 'INVERSESQUARECURVE', 'SHARPCURVE', 'LINCURVE', 'NOCURVE', 'RNDCURVE', 'PROP_OFF', 'PROP_ON', 'PROP_CON', 'PROP_PROJECTED', 'PARTICLE_POINT', 'PARTICLE_TIP', 'PARTICLE_PATH', 'SNAP_OFF', 'SNAP_ON', 'SNAP_NORMAL', 'SNAP_GRID', 'SNAP_VERTEX', 'SNAP_EDGE', 'SNAP_FACE', 'SNAP_VOLUME', 'SNAP_INCREMENT', 'STICKY_UVS_LOC', 'STICKY_UVS_DISABLE', 'STICKY_UVS_VERT', 'CLIPUV_DEHLT', 'CLIPUV_HLT', 'SNAP_PEEL_OBJECT', 'GRID', 'OBJECT_ORIGIN', 'ORIENTATION_GLOBAL', 'ORIENTATION_GIMBAL', 'ORIENTATION_LOCAL', 'ORIENTATION_NORMAL', 'ORIENTATION_VIEW', 'COPYDOWN', 'PASTEDOWN', 'PASTEFLIPUP', 'PASTEFLIPDOWN', 'VIS_SEL_11', 'VIS_SEL_10', 'VIS_SEL_01', 'VIS_SEL_00', 'AUTOMERGE_OFF', 'AUTOMERGE_ON', 'UV_VERTEXSEL', 'UV_EDGESEL', 'UV_FACESEL', 'UV_ISLANDSEL', 'UV_SYNC_SELECT', 'GIZMO', 'ORIENTATION_CURSOR', 'NORMALS_VERTEX', 'NORMALS_FACE', 'NORMALS_VERTEX_FACE', 'SHADING_BBOX', 'SHADING_WIRE', 'SHADING_SOLID', 'SHADING_RENDERED', 'SHADING_TEXTURE', 'OVERLAY', 'XRAY', 'LOCKVIEW_OFF', 'LOCKVIEW_ON', 'AXIS_SIDE', 'AXIS_FRONT', 'AXIS_TOP', 'NDOF_DOM', 'NDOF_TURN', 'NDOF_FLY', 'NDOF_TRANS', 'LAYER_USED', 'LAYER_ACTIVE', 'SORTALPHA', 'SORTBYEXT', 'SORTTIME', 'SORTSIZE', 'SHORTDISPLAY', 'LONGDISPLAY', 'IMGDISPLAY', 'BOOKMARKS', 'FONTPREVIEW', 'FILTER', 'NEWFOLDER', 'FILE_PARENT', 'FILE_REFRESH', 'FILE_FOLDER', 'FILE_BLANK', 'FILE_BLEND', 'FILE_IMAGE', 'FILE_MOVIE', 'FILE_SCRIPT', 'FILE_SOUND', 'FILE_FONT', 'FILE_TEXT', 'SORT_DESC', 'SORT_ASC', 'LINK_BLEND', 'APPEND_BLEND', 'IMPORT', 'EXPORT', 'LOOP_BACK', 'LOOP_FORWARDS', 'BACK', 'FORWARD', 'FILE_CACHE', 'FILE_VOLUME', 'FILE_3D', 'FILE_HIDDEN', 'FILE_BACKUP', 'DISK_DRIVE', 'MATPLANE', 'MATSPHERE', 'MATCUBE', 'MONKEY', 'HAIR', 'ALIASED', 'ANTIALIASED', 'MAT_SPHERE_SKY', 'MATSHADERBALL', 'MATCLOTH', 'MATFLUID', 'WORDWRAP_OFF', 'WORDWRAP_ON', 'SYNTAX_OFF', 'SYNTAX_ON', 'LINENUMBERS_OFF', 'LINENUMBERS_ON', 'SCRIPTPLUGINS', 'SEQ_SEQUENCER', 'SEQ_PREVIEW', 'SEQ_LUMA_WAVEFORM', 'SEQ_CHROMA_SCOPE', 'SEQ_HISTOGRAM', 'SEQ_SPLITVIEW', 'IMAGE_RGB', 'IMAGE_RGB_ALPHA', 'IMAGE_ALPHA', 'IMAGE_ZDEPTH', 'VIEW_PERSPECTIVE', 'VIEW_ORTHO', 'VIEW_CAMERA', 'VIEW_PAN', 'VIEW_ZOOM', 'BRUSH_BLOB', 'BRUSH_BLUR', 'BRUSH_CLAY', 'BRUSH_CLAY_STRIPS', 'BRUSH_CLONE', 'BRUSH_CREASE', 'BRUSH_FILL', 'BRUSH_FLATTEN', 'BRUSH_GRAB', 'BRUSH_INFLATE', 'BRUSH_LAYER', 'BRUSH_MASK', 'BRUSH_MIX', 'BRUSH_NUDGE', 'BRUSH_PINCH', 'BRUSH_SCRAPE', 'BRUSH_SCULPT_DRAW', 'BRUSH_SMEAR', 'BRUSH_SMOOTH', 'BRUSH_SNAKE_HOOK', 'BRUSH_SOFTEN', 'BRUSH_TEXDRAW', 'BRUSH_TEXFILL', 'BRUSH_TEXMASK', 'BRUSH_THUMB', 'BRUSH_ROTATE', 'GPBRUSH_SMOOTH', 'GPBRUSH_THICKNESS', 'GPBRUSH_STRENGTH', 'GPBRUSH_GRAB', 'GPBRUSH_PUSH', 'GPBRUSH_TWIST', 'GPBRUSH_PINCH', 'GPBRUSH_RANDOMIZE', 'GPBRUSH_CLONE', 'GPBRUSH_WEIGHT', 'GPBRUSH_PENCIL', 'GPBRUSH_PEN', 'GPBRUSH_INK', 'GPBRUSH_INKNOISE', 'GPBRUSH_BLOCK', 'GPBRUSH_MARKER', 'GPBRUSH_FILL', 'GPBRUSH_ERASE_SOFT', 'GPBRUSH_ERASE_HARD', 'GPBRUSH_ERASE_STROKE', 'SMALL_TRI_RIGHT_VEC', 'KEYTYPE_KEYFRAME_VEC', 'KEYTYPE_BREAKDOWN_VEC', 'KEYTYPE_EXTREME_VEC', 'KEYTYPE_JITTER_VEC', 'KEYTYPE_MOVING_HOLD_VEC', 'HANDLETYPE_FREE_VEC', 'HANDLETYPE_ALIGNED_VEC', 'HANDLETYPE_VECTOR_VEC', 'HANDLETYPE_AUTO_VEC', 'HANDLETYPE_AUTO_CLAMP_VEC', 'COLORSET_01_VEC', 'COLORSET_02_VEC', 'COLORSET_03_VEC', 'COLORSET_04_VEC', 'COLORSET_05_VEC', 'COLORSET_06_VEC', 'COLORSET_07_VEC', 'COLORSET_08_VEC', 'COLORSET_09_VEC', 'COLORSET_10_VEC', 'COLORSET_11_VEC', 'COLORSET_12_VEC', 'COLORSET_13_VEC', 'COLORSET_14_VEC', 'COLORSET_15_VEC', 'COLORSET_16_VEC', 'COLORSET_17_VEC', 'COLORSET_18_VEC', 'COLORSET_19_VEC', 'COLORSET_20_VEC', 'EVENT_A', 'EVENT_B', 'EVENT_C', 'EVENT_D', 'EVENT_E', 'EVENT_F', 'EVENT_G', 'EVENT_H', 'EVENT_I', 'EVENT_J', 'EVENT_K', 'EVENT_L', 'EVENT_M', 'EVENT_N', 'EVENT_O', 'EVENT_P', 'EVENT_Q', 'EVENT_R', 'EVENT_S', 'EVENT_T', 'EVENT_U', 'EVENT_V', 'EVENT_W', 'EVENT_X', 'EVENT_Y', 'EVENT_Z', 'EVENT_SHIFT', 'EVENT_CTRL', 'EVENT_ALT', 'EVENT_OS', 'EVENT_F1', 'EVENT_F2', 'EVENT_F3', 'EVENT_F4', 'EVENT_F5', 'EVENT_F6', 'EVENT_F7', 'EVENT_F8', 'EVENT_F9', 'EVENT_F10', 'EVENT_F11', 'EVENT_F12', 'EVENT_ESC', 'EVENT_TAB', 'EVENT_PAGEUP', 'EVENT_PAGEDOWN', 'EVENT_RETURN') And after changing VISIBLE_IPO_ON/OFF to HIDE_OFF/ON in the mentioned file issue disappears. Of course you may say that it's the issue with an un-updated addons. but that's weird. when Blender starts to misbehave instead of showing error message about the issue, isn't it? **Exact steps for others to reproduce the error** 1. Open any scroll of the addon with VISIBLE_IPO_ON in it. 2. Enjoy the performance.

Bohdan Lvov commented

2019-06-25 00:39:29 +02:00

Added subscriber: @ostapblender

Campbell Barton commented

2019-06-25 01:54:29 +02:00

Added subscriber: @ideasman42

Campbell Barton commented

2019-06-25 01:54:29 +02:00

Changed status from 'Open' to: 'Archived'

Campbell Barton closed this issue

2019-06-25 01:54:29 +02:00

Campbell Barton self-assigned this 2019-06-25 01:54:29 +02:00

Campbell Barton commented

2019-06-25 01:54:29 +02:00

As noted, the add-on needs to be updated for the renamed icon, see: https://wiki.blender.org/wiki/Reference/Release_Notes/2.80/Python_API/UI_API#Renamed

For faster errors we would need to remove verbose enum exceptions.

This is particularly extreme for icons.

An alternative would be to blacklist add-ons after the first error.

Marking as TODO since this is a performance issue for an error case which shouldn't happen often.

As noted, the add-on needs to be updated for the renamed icon, see: https://wiki.blender.org/wiki/Reference/Release_Notes/2.80/Python_API/UI_API#Renamed For faster errors we would need to remove verbose enum exceptions. This is particularly extreme for icons. An alternative would be to blacklist add-ons after the first error. Marking as TODO since this is a performance issue for an error case which shouldn't happen often.

Campbell Barton commented

2019-06-25 02:02:18 +02:00

Changed status from 'Archived' to: 'Open'

Campbell Barton reopened this issue

2019-06-25 02:02:18 +02:00

Campbell Barton changed title from ~~Preferences window lags horribly due to VISIBLE_IPO_ON change~~ to Preferences window lags with add-ons that have exceptions

2019-06-25 02:03:47 +02:00

Campbell Barton changed title from ~~Preferences window lags with add-ons that have exceptions~~ to Preferences window lags with add-ons preferences UI raises an exception

2019-06-25 02:04:18 +02:00

Campbell Barton commented

2019-06-25 03:49:05 +02:00

Note that such large exceptions aren't great and make exception handling not work well as a way of intentionally allowing for an error with a fallback action (although the use case for a try/except block here is questionable, it's not good that it can be such a bottleneck).

We could only display this full list when the "Developer Extras" preferences is enabled,
although I don't really like preferences like this potentially impacting performance in a way that won't be so obvious (if the exception message is suppressed for eg).

Or we could enable expanding the enum list when --debug-python argument is set.

It would be a shame though, since it's useful having the full list of possibilities in the enum, since it's nearly always what you need when there is an error assigning an enum.

Note that such large exceptions aren't great and make exception handling not work well as a way of intentionally allowing for an error with a fallback action *(although the use case for a try/except block here is questionable, it's not good that it can be such a bottleneck)*. We could only display this full list when the "Developer Extras" preferences is enabled, although I don't really like preferences like this potentially impacting performance in a way that won't be so obvious (if the exception message is suppressed for eg). Or we could enable expanding the enum list when `--debug-python` argument is set. It would be a shame though, since it's useful having the full list of possibilities in the enum, since it's nearly always what you need when there is an error assigning an enum.

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Preferences window lags with add-ons preferences UI raises an exception #66093