Cleanup: use equality instead of contains for single-item sets

4 files changed, 9 insertions, 9 deletions

diff --git a/release/scripts/startup/bl_ui/properties_grease_pencil_common.py b/release/scripts/startup/bl_ui/properties_grease_pencil_common.py
index d5a9887f551..481753d5e79 100644
--- a/release/scripts/startup/bl_ui/properties_grease_pencil_common.py
+++ b/release/scripts/startup/bl_ui/properties_grease_pencil_common.py
@@ -362,7 +362,7 @@ class GPENCIL_UL_annotation_layer(UIList):
 
             row = layout.row(align=True)
 
-            icon_xray = "XRAY" if gpl.show_in_front else "FACESEL"
+            icon_xray = 'XRAY' if gpl.show_in_front else 'FACESEL'
             row.prop(gpl, "show_in_front", text="", icon=icon_xray, emboss=False)
 
             row.prop(gpl, "annotation_hide", text="", emboss=False)
diff --git a/release/scripts/startup/bl_ui/properties_physics_fluid.py b/release/scripts/startup/bl_ui/properties_physics_fluid.py
index 0e8e452c717..f8dea120db3 100644
--- a/release/scripts/startup/bl_ui/properties_physics_fluid.py
+++ b/release/scripts/startup/bl_ui/properties_physics_fluid.py
@@ -55,7 +55,7 @@ class PhysicButtonsPanel:
         md = context.fluid
         if md and (md.fluid_type == 'DOMAIN'):
             domain = md.domain_settings
-            return domain.domain_type in {'GAS'}
+            return domain.domain_type == 'GAS'
         return False
 
     @staticmethod
@@ -66,7 +66,7 @@ class PhysicButtonsPanel:
         md = context.fluid
         if md and (md.fluid_type == 'DOMAIN'):
             domain = md.domain_settings
-            return domain.domain_type in {'LIQUID'}
+            return domain.domain_type == 'LIQUID'
         return False
 
     @staticmethod
@@ -812,7 +812,7 @@ class PHYSICS_PT_mesh(PhysicButtonsPanel, Panel):
         col.separator()
         col.prop(domain, "mesh_generator", text="Mesh Generator")
 
-        if domain.mesh_generator in {'IMPROVED'}:
+        if domain.mesh_generator == 'IMPROVED':
             col = flow.column(align=True)
             col.prop(domain, "mesh_smoothen_pos", text="Smoothing Positive")
             col.prop(domain, "mesh_smoothen_neg", text="Negative")
@@ -1227,7 +1227,7 @@ class PHYSICS_PT_cache(PhysicButtonsPanel, Panel):
         row.enabled = not is_baking_any and not has_baked_data
         row.prop(domain, "cache_data_format", text="Format Volumes")
 
-        if md.domain_settings.domain_type in {'LIQUID'} and domain.use_mesh:
+        if md.domain_settings.domain_type == 'LIQUID' and domain.use_mesh:
             row = col.row()
             row.enabled = not is_baking_any and not has_baked_mesh
             row.prop(domain, "cache_mesh_format", text="Meshes")
diff --git a/release/scripts/startup/bl_ui/space_outliner.py b/release/scripts/startup/bl_ui/space_outliner.py
index bbe165b9286..0f3dc1f8794 100644
--- a/release/scripts/startup/bl_ui/space_outliner.py
+++ b/release/scripts/startup/bl_ui/space_outliner.py
@@ -351,7 +351,7 @@ class OUTLINER_PT_filter(Panel):
             col = layout.column(align=True)
             col.prop(space, "use_sort_alpha")
 
-        if display_mode not in {'LIBRARY_OVERRIDES'}:
+        if display_mode != 'LIBRARY_OVERRIDES':
             row = layout.row(align=True)
             row.prop(space, "use_sync_select", text="Sync Selection")
 
@@ -364,13 +364,13 @@ class OUTLINER_PT_filter(Panel):
         col.prop(space, "use_filter_complete", text="Exact Match")
         col.prop(space, "use_filter_case_sensitive", text="Case Sensitive")
 
-        if display_mode in {'LIBRARY_OVERRIDES'} and bpy.data.libraries:
+        if display_mode == 'LIBRARY_OVERRIDES' and bpy.data.libraries:
             col.separator()
             row = col.row()
             row.label(icon='LIBRARY_DATA_OVERRIDE')
             row.prop(space, "use_filter_lib_override_system", text="System Overrides")
 
-        if display_mode not in {'VIEW_LAYER'}:
+        if display_mode != 'VIEW_LAYER':
             return
 
         layout.separator()
diff --git a/release/scripts/startup/bl_ui/space_view3d.py b/release/scripts/startup/bl_ui/space_view3d.py
index 1c42bc85fae..e78ea9d7fc1 100644
--- a/release/scripts/startup/bl_ui/space_view3d.py
+++ b/release/scripts/startup/bl_ui/space_view3d.py
@@ -5301,7 +5301,7 @@ class VIEW3D_MT_pivot_pie(Menu):
         pie.prop_enum(context.scene.tool_settings, "transform_pivot_point", value='ACTIVE_ELEMENT')
         if (obj is None) or (mode in {'OBJECT', 'POSE', 'WEIGHT_PAINT'}):
             pie.prop(context.scene.tool_settings, "use_transform_pivot_point_align")
-        if mode in {'EDIT_GPENCIL'}:
+        if mode == 'EDIT_GPENCIL':
             pie.prop(context.scene.tool_settings.gpencil_sculpt, "use_scale_thickness")