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Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: serhiy-storchaka

Doc/c-api/capsule.rst

@@ -108,8 +108,10 @@ Refer to :ref:`using-capsules` for more information on using these objects.
 
    Import a pointer to a C object from a capsule attribute in a module.  The
    *name* parameter should specify the full name to the attribute, as in
-   ``module.attribute``.  The *name* stored in the capsule must match this
-   string exactly.
+   ``package.module.attribute``.
+   Modules are imported if needed,
+   other components are looked up as attributes.
+   The *name* stored in the capsule must match this string exactly.
 
    Return the capsule's internal *pointer* on success.  On failure, set an
    exception and return ``NULL``.
@@ -118,8 +120,7 @@ Refer to :ref:`using-capsules` for more information on using these objects.
       *no_block* has no effect anymore.
 
    .. versionchanged:: next
-      Submodules are now imported if needed,
-      as in ``package.module.attribute``.
+      Submodules are now imported if needed.
 
 
 .. c:function:: int PyCapsule_IsValid(PyObject *capsule, const char *name)

Objects/capsule.c

@@ -232,14 +232,13 @@ PyCapsule_Import(const char *name, int Py_UNUSED(no_block))
 {
     PyObject *object = NULL;
     void *return_value = NULL;
-    char *trace;
     char *name_dup = _PyMem_Strdup(name);
 
     if (!name_dup) {
         return PyErr_NoMemory();
     }
 
-    trace = name_dup;
+    char *trace = name_dup;
     while (1) {
         char *dot = strchr(trace, '.');
         if (dot) {
@@ -254,8 +253,10 @@ PyCapsule_Import(const char *name, int Py_UNUSED(no_block))
             Py_SETREF(object, attr);
         }
         if (!dot) {
+            // We are done
             break;
         }
+
         if (!object) {
             object = PyImport_ImportModule(name_dup);
             if (!object) {