RNA enum properties support

introspect.py

@@ -1555,7 +1555,7 @@ def _property_data_from_member(
         is_readonly = raw.fset is None
     else:
         is_readonly = not _is_getset_writable(cls, name)
-    prop_type = rtype or "object"
+    prop_type = rna_enum_literal_type(cls, name) or rtype or "object"
     result: PropertyData = {
         "name": name,
         "type": prop_type,
@@ -1567,6 +1567,41 @@ def _property_data_from_member(
     return result
 
 
+def rna_enum_literal_type(cls: type[object], name: str) -> str | None:
+    """Return a Literal annotation for an RNA enum property, when available.
+
+    RNA metadata is the authoritative source for enum identifiers.  Blender's
+    Python docstrings do not consistently include the enum items for class
+    properties, so relying on the docstring can leave properties such as
+    ``Panel.bl_space_type`` typed as plain ``str``.
+    """
+    rna = getattr(cls, "bl_rna", None)
+    if rna is None:
+        return None
+
+    properties = getattr(rna, "properties", None)
+    if properties is None:
+        return None
+
+    try:
+        prop = properties[name]
+    except (KeyError, IndexError, TypeError):
+        return None
+
+    if getattr(prop, "type", None) != "ENUM":
+        return None
+
+    values = [
+        str(getattr(item, "identifier", "")) for item in getattr(prop, "enum_items", [])
+    ]
+    values = [value for value in values if value]
+    if not values:
+        return None
+
+    quoted = ", ".join(f'"{value}"' for value in values)
+    return f"Literal[{quoted}]"
+
+
 def _introspect_declared_class_members(
     cls: type[object],
 ) -> tuple[list[PropertyData], list[FunctionData]]: