Cleanup: use static set syntax

doc/blender_file_format/BlendFileReader.py

@@ -85,7 +85,7 @@ def openBlendFile(filename):
     '''
     handle = open(filename, 'rb')
     magic = ReadString(handle, 7)
-    if magic in ("BLENDER", "BULLETf"):
+    if magic in {"BLENDER", "BULLETf"}:
         log.debug("normal blendfile detected")
         handle.seek(0, os.SEEK_SET)
         return handle
@@ -137,7 +137,7 @@ class BlendFile:
         fileblock = BlendFileBlock(handle, self)
         found_dna_block = False
         while not found_dna_block:
-            if fileblock.Header.Code in ("DNA1", "SDNA"):
+            if fileblock.Header.Code in {"DNA1", "SDNA"}:
                 self.Catalog = DNACatalog(self.Header, handle)
                 found_dna_block = True
             else:

release/scripts/startup/bl_ui/space_toolsystem_toolbar.py

@@ -164,7 +164,7 @@ class _defs_annotate:
             gpl = context.active_annotation_layer
             if gpl is not None:
                 layout.label(text="Annotation:")
-                if context.space_data.type in ('VIEW_3D', 'SEQUENCE_EDITOR'):
+                if context.space_data.type in {'VIEW_3D', 'SEQUENCE_EDITOR'}:
                     if region_type == 'TOOL_HEADER':
                         sub = layout.split(align=True, factor=0.5)
                         sub.ui_units_x = 6.5

source/blender/python/rna_dump.py

@@ -62,7 +62,7 @@ def seek(r, txt, recurs):
     # print(dir(r))
 
     # basic types
-    if type_r in (float, int, bool, type(None)):
+    if type_r in {float, int, bool, type(None)}:
         if PRINT_DATA:
             print(txt + ' -> ' + str(r))
         return