gh-124182: Explain naming rules for struct sequence types (#124335)

diff --git a/Doc/c-api/tuple.rst b/Doc/c-api/tuple.rst
index 7a8a6134282ade28a174723877a0b3f8a146c97e..815afddad19df1a292f25b16ef221143ce57c724 100644 (file)
--- a/Doc/c-api/tuple.rst
+++ b/Doc/c-api/tuple.rst
@@ -167,7 +167,8 @@ type.
 
    .. c:member:: const char *name
 
-      Name of the struct sequence type.
+      Fully qualified name of the type; null-terminated UTF-8 encoded.
+      The name must contain the module name.
 
    .. c:member:: const char *doc