From ca064402079f889226cb107b26b329891431c319 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Wed, 9 Dec 2020 20:54:31 +0100
Subject: [PATCH] bpo-32381: Remove unused _Py_fopen() function (GH-23711)

Remove the private _Py_fopen() function which is no longer needed.
Use _Py_wfopen() or _Py_fopen_obj() instead.
---
 Include/cpython/fileutils.h                   |  4 ---
 .../2020-12-09-00-35-25.bpo-32381.Je08Ny.rst  |  3 +++
 Python/fileutils.c                            | 27 -------------------
 3 files changed, 3 insertions(+), 31 deletions(-)
 create mode 100644 Misc/NEWS.d/next/C API/2020-12-09-00-35-25.bpo-32381.Je08Ny.rst

diff --git a/Include/cpython/fileutils.h b/Include/cpython/fileutils.h
index e79d03e24f5..312fd958284 100644
--- a/Include/cpython/fileutils.h
+++ b/Include/cpython/fileutils.h
@@ -95,10 +95,6 @@ PyAPI_FUNC(FILE *) _Py_wfopen(
     const wchar_t *path,
     const wchar_t *mode);
 
-PyAPI_FUNC(FILE*) _Py_fopen(
-    const char *pathname,
-    const char *mode);
-
 PyAPI_FUNC(FILE*) _Py_fopen_obj(
     PyObject *path,
     const char *mode);
diff --git a/Misc/NEWS.d/next/C API/2020-12-09-00-35-25.bpo-32381.Je08Ny.rst b/Misc/NEWS.d/next/C API/2020-12-09-00-35-25.bpo-32381.Je08Ny.rst
new file mode 100644
index 00000000000..ded75fa54a4
--- /dev/null
+++ b/Misc/NEWS.d/next/C API/2020-12-09-00-35-25.bpo-32381.Je08Ny.rst	
@@ -0,0 +1,3 @@
+Remove the private :c:func:`_Py_fopen` function which is no longer needed.
+Use :c:func:`_Py_wfopen` or :c:func:`_Py_fopen_obj` instead. Patch by Victor
+Stinner.
diff --git a/Python/fileutils.c b/Python/fileutils.c
index ac382821174..8dc90fbe2b2 100644
--- a/Python/fileutils.c
+++ b/Python/fileutils.c
@@ -1455,33 +1455,6 @@ _Py_wfopen(const wchar_t *path, const wchar_t *mode)
     return f;
 }
 
-/* Wrapper to fopen().
-
-   The file descriptor is created non-inheritable.
-
-   If interrupted by a signal, fail with EINTR. */
-FILE*
-_Py_fopen(const char *pathname, const char *mode)
-{
-    PyObject *pathname_obj = PyUnicode_DecodeFSDefault(pathname);
-    if (pathname_obj == NULL) {
-        return NULL;
-    }
-    if (PySys_Audit("open", "Osi", pathname_obj, mode, 0) < 0) {
-        Py_DECREF(pathname_obj);
-        return NULL;
-    }
-    Py_DECREF(pathname_obj);
-
-    FILE *f = fopen(pathname, mode);
-    if (f == NULL)
-        return NULL;
-    if (make_non_inheritable(fileno(f)) < 0) {
-        fclose(f);
-        return NULL;
-    }
-    return f;
-}
 
 /* Open a file. Call _wfopen() on Windows, or encode the path to the filesystem
    encoding and call fopen() otherwise.