From 35f60c3def32f83c73c9314809569cb7793f985c Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Fri, 12 Apr 2024 12:22:17 +0300
Subject: gh-117764: Add signatures for __reduce__ and __reduce_ex__ in the _io
 module (GH-117773)

__reduce__() does not have parameters, __reduce_ex__() has a single
parameter.
---
 Modules/_io/bufferedio.c | 12 ++++++------
 Modules/_io/fileio.c     |  4 ++--
 Modules/_io/textio.c     |  4 ++--
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Modules/_io/bufferedio.c b/Modules/_io/bufferedio.c
index b3450ee..4133d34 100644
--- a/Modules/_io/bufferedio.c
+++ b/Modules/_io/bufferedio.c
@@ -2531,8 +2531,8 @@ static PyMethodDef bufferedreader_methods[] = {
     _IO__BUFFERED_TRUNCATE_METHODDEF
     _IO__BUFFERED___SIZEOF___METHODDEF
 
-    {"__reduce__", _PyIOBase_cannot_pickle, METH_VARARGS},
-    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_VARARGS},
+    {"__reduce__", _PyIOBase_cannot_pickle, METH_NOARGS},
+    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_O},
     {NULL, NULL}
 };
 
@@ -2591,8 +2591,8 @@ static PyMethodDef bufferedwriter_methods[] = {
     _IO__BUFFERED_TELL_METHODDEF
     _IO__BUFFERED___SIZEOF___METHODDEF
 
-    {"__reduce__", _PyIOBase_cannot_pickle, METH_VARARGS},
-    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_VARARGS},
+    {"__reduce__", _PyIOBase_cannot_pickle, METH_NOARGS},
+    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_O},
     {NULL, NULL}
 };
 
@@ -2709,8 +2709,8 @@ static PyMethodDef bufferedrandom_methods[] = {
     _IO_BUFFEREDWRITER_WRITE_METHODDEF
     _IO__BUFFERED___SIZEOF___METHODDEF
 
-    {"__reduce__", _PyIOBase_cannot_pickle, METH_VARARGS},
-    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_VARARGS},
+    {"__reduce__", _PyIOBase_cannot_pickle, METH_NOARGS},
+    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_O},
     {NULL, NULL}
 };
 
diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index 6bb156e..b5129ff 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -1178,8 +1178,8 @@ static PyMethodDef fileio_methods[] = {
     _IO_FILEIO_FILENO_METHODDEF
     _IO_FILEIO_ISATTY_METHODDEF
     {"_dealloc_warn", (PyCFunction)fileio_dealloc_warn, METH_O, NULL},
-    {"__reduce__", _PyIOBase_cannot_pickle, METH_VARARGS},
-    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_VARARGS},
+    {"__reduce__", _PyIOBase_cannot_pickle, METH_NOARGS},
+    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_O},
     {NULL,           NULL}             /* sentinel */
 };
 
diff --git a/Modules/_io/textio.c b/Modules/_io/textio.c
index a3239ec..9dff8ea 100644
--- a/Modules/_io/textio.c
+++ b/Modules/_io/textio.c
@@ -3337,8 +3337,8 @@ static PyMethodDef textiowrapper_methods[] = {
     _IO_TEXTIOWRAPPER_TELL_METHODDEF
     _IO_TEXTIOWRAPPER_TRUNCATE_METHODDEF
 
-    {"__reduce__", _PyIOBase_cannot_pickle, METH_VARARGS},
-    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_VARARGS},
+    {"__reduce__", _PyIOBase_cannot_pickle, METH_NOARGS},
+    {"__reduce_ex__", _PyIOBase_cannot_pickle, METH_O},
     {NULL, NULL}
 };
 
-- 
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