diff --git a/scripts/modules/bl_ui_utils/bug_report_url.py b/scripts/modules/bl_ui_utils/bug_report_url.py
index 27c8b0a6b89..66c4458503d 100644
--- a/scripts/modules/bl_ui_utils/bug_report_url.py
+++ b/scripts/modules/bl_ui_utils/bug_report_url.py
@@ -47,4 +47,4 @@ def url_prefill_from_blender(*, addon_info=None):
         query_params["addon_author"] = addon_info_lines[1].removeprefix("Author: ")
 
     query_str = urllib.parse.urlencode(query_params)
-    return f"https://redirect.blender.org/?{query_str}"
+    return "https://redirect.blender.org/?" + query_str
diff --git a/scripts/modules/grease_pencil_python.py b/scripts/modules/grease_pencil_python.py
index dd4ff904b4b..aa2bbc62f32 100644
--- a/scripts/modules/grease_pencil_python.py
+++ b/scripts/modules/grease_pencil_python.py
@@ -21,7 +21,7 @@ class AttributeGetterSetter:
             elif type in {'FLOAT_COLOR', 'BYTE_COLOR'}:
                 return attribute.data[self._index].color
             else:
-                raise Exception(f"Unknown type {type}")
+                raise Exception("Unknown type {!r}".format(type))
         return default
 
     def _set_attribute(self, name, type, value):
@@ -33,9 +33,9 @@ class AttributeGetterSetter:
             elif type in {'FLOAT_COLOR', 'BYTE_COLOR'}:
                 attribute.data[self._index].color = value
             else:
-                raise Exception(f"Unknown type {type}")
+                raise Exception("Unknown type {!r}".format(type))
         else:
-            raise Exception(f"Could not create attribute {name} of type {type}")
+            raise Exception("Could not create attribute {:s} of type {!r}".format(name, type))
 
 
 def def_prop_for_attribute(attr_name, type, default, doc):
@@ -113,7 +113,7 @@ class GreasePencilStrokePointSlice:
     def __getitem__(self, key):
         if isinstance(key, int):
             if not self._is_valid_index(key):
-                raise IndexError(f"Key {key} is out of range")
+                raise IndexError("Key {:d} is out of range".format(key))
             # Turn the key into an index.
             point_i = self._start + (key % self._size)
             return GreasePencilStrokePoint(self._drawing, point_i)
@@ -131,7 +131,7 @@ class GreasePencilStrokePointSlice:
             stop = max(0, min(stop, self._size))
             return GreasePencilStrokePointSlice(self._drawing, self._start + start, self._start + stop)
         else:
-            raise TypeError(f"Unexpected index of type {type(key)}")
+            raise TypeError("Unexpected index of type {!r}".format(type(key)))
 
 
 # Define the list of attributes that should be exposed as read/write properties on the class.
@@ -216,7 +216,7 @@ class GreasePencilStrokeSlice:
     def __getitem__(self, key):
         if isinstance(key, int):
             if not self._is_valid_index(key):
-                raise IndexError(f"Key {key} is out of range")
+                raise IndexError("Key {:d} is out of range".format(key))
             # Turn the key into an index.
             curve_i = self._start + (key % self._size)
             offsets = self._curve_offsets
@@ -235,4 +235,4 @@ class GreasePencilStrokeSlice:
             stop = max(0, min(stop, self._size))
             return GreasePencilStrokeSlice(self._drawing, self._start + start, self._start + stop)
         else:
-            raise TypeError(f"Unexpected index of type {type(key)}")
+            raise TypeError("Unexpected index of type {!r}".format(type(key)))
diff --git a/tools/utils_maintenance/code_clean.py b/tools/utils_maintenance/code_clean.py
index ce844991707..9832245adfb 100755
--- a/tools/utils_maintenance/code_clean.py
+++ b/tools/utils_maintenance/code_clean.py
@@ -2172,7 +2172,7 @@ def main() -> int:
         try:
             regex_list.append(re.compile(expr))
         except Exception as ex:
-            print(f"Error in expression: {expr}\n  {ex}")
+            print("Error in expression: {:s}\n  {!r}".format(expr, ex))
             return 1
 
     edits_all_from_args = args.edits.split(",")