Document the lifetime of PyUnicode_AsUTF8String (#92325)

godlygeek · web-flow · commit 740da8d37a84 · 2022-05-06T10:37:08.000+01:00
The current wording implied this, but didn't state it explicitly.
diff --git a/Doc/c-api/unicode.rst b/Doc/c-api/unicode.rst
@@ -1075,7 +1075,8 @@ These are the UTF-8 codec APIs:
 
    This caches the UTF-8 representation of the string in the Unicode object, and
    subsequent calls will return a pointer to the same buffer.  The caller is not
-   responsible for deallocating the buffer.
+   responsible for deallocating the buffer. The buffer is deallocated and
+   pointers to it become invalid when the Unicode object is garbage collected.
 
    .. versionadded:: 3.3
 
