Cleanup: use percentage formatting

`str.format` and `f-string` use was minimal.
Prefer using a single style of string formatting
unless an alternative is more widely adopted.

2 files changed, 5 insertions, 4 deletions

diff --git a/release/scripts/modules/bpy/ops.py b/release/scripts/modules/bpy/ops.py
index 8f8f42bcd46..4e226f80f79 100644
--- a/release/scripts/modules/bpy/ops.py
+++ b/release/scripts/modules/bpy/ops.py
@@ -123,7 +123,7 @@ class BPyOpsSubModOp:
         # op_class = getattr(bpy.types, idname)
         op_class = op_get_rna_type(idname)
         descr = op_class.description
-        return f"{sig}\n{descr}"
+        return "%s\n%s" % (sig, descr)
 
     @staticmethod
     def _parse_args(args):
diff --git a/release/scripts/modules/bpy/utils/previews.py b/release/scripts/modules/bpy/utils/previews.py
index bfdf28e0db4..7f337677635 100644
--- a/release/scripts/modules/bpy/utils/previews.py
+++ b/release/scripts/modules/bpy/utils/previews.py
@@ -76,8 +76,7 @@ class ImagePreviewCollection(dict):
             return
 
         raise ResourceWarning(
-            f"{self!r}: left open, remove with "
-            "'bpy.utils.previews.remove()'"
+            "%r: left open, remove with 'bpy.utils.previews.remove()'" % self
         )
         self.close()
 
@@ -116,7 +115,9 @@ class ImagePreviewCollection(dict):
         super().__delitem__(key)
 
     def __repr__(self):
-        return f"<{self.__class__.__name__:s} id={self._uuid:s}[{len(self):d}], {super()!r}>"
+        return "<%s id=%s[%d], %r>" % (
+            self.__class__.__name__, self._uuid, len(self), super()
+        )
 
 
 def new():