#1554133: Document PyOS_InputHook, PyOS_ReadlineFunctionPointer
diff --git a/Doc/c-api/veryhigh.rst b/Doc/c-api/veryhigh.rst
index 499eb3e..284eee8 100644
--- a/Doc/c-api/veryhigh.rst
+++ b/Doc/c-api/veryhigh.rst
@@ -144,6 +144,29 @@
(:func:`sys.getfilesystemencoding`). Returns ``0`` at EOF.
+.. c:var:: int (*PyOS_InputHook)(void)
+
+ Can be set to point to a function with the prototype
+ ``int func(void)``. The function will be called when Python's
+ interpreter prompt is about to become idle and wait for user input
+ from the terminal. The return value is ignored. Overriding this
+ hook can be used to integrate the interpreter's prompt with other
+ event loops, as done in the :file:`Modules/_tkinter.c` in the
+ Python source code.
+
+
+.. c:var:: char* (*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, char *)
+
+ Can be set to point to a function with the prototype
+ ``char *func(FILE *stdin, FILE *stdout, char *prompt)``,
+ overriding the default function used to read a single line of input
+ at the interpreter's prompt. The function is expected to output
+ the string *prompt* if it's not *NULL*, and then read a line of
+ input from the provided standard input file, returning the
+ resulting string. For example, The :mod:`readline` module sets
+ this hook to provide line-editing and tab-completion features.
+
+
.. c:function:: struct _node* PyParser_SimpleParseString(const char *str, int start)
This is a simplified interface to
@@ -338,4 +361,3 @@
This bit can be set in *flags* to cause division operator ``/`` to be
interpreted as "true division" according to :pep:`238`.
-