bpo-38378: Rename parameters "out" and "in" of os.sendfile(). (GH-16742)

They conflicted with keyword "in".

Also rename positional-only parameters of private os._fcopyfile()
for consistency.

2 files changed, 20 insertions, 21 deletions

diff --git a/Modules/clinic/posixmodule.c.h b/Modules/clinic/posixmodule.c.h
index 00b05f7..561cbb0 100644
--- a/Modules/clinic/posixmodule.c.h
+++ b/Modules/clinic/posixmodule.c.h
@@ -4986,7 +4986,7 @@ exit:
 #if defined(__APPLE__)
 
 PyDoc_STRVAR(os__fcopyfile__doc__,
-"_fcopyfile($module, infd, outfd, flags, /)\n"
+"_fcopyfile($module, in_fd, out_fd, flags, /)\n"
 "--\n"
 "\n"
 "Efficiently copy content or metadata of 2 regular file descriptors (macOS).");
@@ -4995,14 +4995,14 @@ PyDoc_STRVAR(os__fcopyfile__doc__,
     {"_fcopyfile", (PyCFunction)(void(*)(void))os__fcopyfile, METH_FASTCALL, os__fcopyfile__doc__},
 
 static PyObject *
-os__fcopyfile_impl(PyObject *module, int infd, int outfd, int flags);
+os__fcopyfile_impl(PyObject *module, int in_fd, int out_fd, int flags);
 
 static PyObject *
 os__fcopyfile(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
 {
     PyObject *return_value = NULL;
-    int infd;
-    int outfd;
+    int in_fd;
+    int out_fd;
     int flags;
 
     if (!_PyArg_CheckPositional("_fcopyfile", nargs, 3, 3)) {
@@ -5013,8 +5013,8 @@ os__fcopyfile(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
                         "integer argument expected, got float" );
         goto exit;
     }
-    infd = _PyLong_AsInt(args[0]);
-    if (infd == -1 && PyErr_Occurred()) {
+    in_fd = _PyLong_AsInt(args[0]);
+    if (in_fd == -1 && PyErr_Occurred()) {
         goto exit;
     }
     if (PyFloat_Check(args[1])) {
@@ -5022,8 +5022,8 @@ os__fcopyfile(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
                         "integer argument expected, got float" );
         goto exit;
     }
-    outfd = _PyLong_AsInt(args[1]);
-    if (outfd == -1 && PyErr_Occurred()) {
+    out_fd = _PyLong_AsInt(args[1]);
+    if (out_fd == -1 && PyErr_Occurred()) {
         goto exit;
     }
     if (PyFloat_Check(args[2])) {
@@ -5035,7 +5035,7 @@ os__fcopyfile(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
     if (flags == -1 && PyErr_Occurred()) {
         goto exit;
     }
-    return_value = os__fcopyfile_impl(module, infd, outfd, flags);
+    return_value = os__fcopyfile_impl(module, in_fd, out_fd, flags);
 
 exit:
     return return_value;
@@ -8731,4 +8731,4 @@ exit:
 #ifndef OS__REMOVE_DLL_DIRECTORY_METHODDEF
     #define OS__REMOVE_DLL_DIRECTORY_METHODDEF
 #endif /* !defined(OS__REMOVE_DLL_DIRECTORY_METHODDEF) */
-/*[clinic end generated code: output=799c75140d84ace5 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=fe7897441fed5402 input=a9049054013a1b77]*/
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index aeb0e9d..3c4e254 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -8993,10 +8993,10 @@ os_write_impl(PyObject *module, int fd, Py_buffer *data)
 
 #ifdef HAVE_SENDFILE
 PyDoc_STRVAR(posix_sendfile__doc__,
-"sendfile(out, in, offset, count) -> byteswritten\n\
-sendfile(out, in, offset, count[, headers][, trailers], flags=0)\n\
+"sendfile(out_fd, in_fd, offset, count) -> byteswritten\n\
+sendfile(out_fd, in_fd, offset, count[, headers][, trailers], flags=0)\n\
             -> byteswritten\n\
-Copy count bytes from file descriptor in to file descriptor out.");
+Copy count bytes from file descriptor in_fd to file descriptor out_fd.");
 
 /* AC 3.5: don't bother converting, has optional group*/
 static PyObject *
@@ -9016,8 +9016,7 @@ posix_sendfile(PyObject *self, PyObject *args, PyObject *kwdict)
     off_t sbytes;
     struct sf_hdtr sf;
     int flags = 0;
-    /* Beware that "in" clashes with Python's own "in" operator keyword */
-    static char *keywords[] = {"out", "in",
+    static char *keywords[] = {"out_fd", "in_fd",
                                 "offset", "count",
                                 "headers", "trailers", "flags", NULL};
 
@@ -9133,7 +9132,7 @@ done:
 #else
     Py_ssize_t count;
     PyObject *offobj;
-    static char *keywords[] = {"out", "in",
+    static char *keywords[] = {"out_fd", "in_fd",
                                 "offset", "count", NULL};
     if (!PyArg_ParseTupleAndKeywords(args, kwdict, "iiOn:sendfile",
             keywords, &out, &in, &offobj, &count))
@@ -9170,8 +9169,8 @@ done:
 /*[clinic input]
 os._fcopyfile
 
-    infd: int
-    outfd: int
+    in_fd: int
+    out_fd: int
     flags: int
     /
 
@@ -9179,13 +9178,13 @@ Efficiently copy content or metadata of 2 regular file descriptors (macOS).
 [clinic start generated code]*/
 
 static PyObject *
-os__fcopyfile_impl(PyObject *module, int infd, int outfd, int flags)
-/*[clinic end generated code: output=8e8885c721ec38e3 input=69e0770e600cb44f]*/
+os__fcopyfile_impl(PyObject *module, int in_fd, int out_fd, int flags)
+/*[clinic end generated code: output=c9d1a35a992e401b input=1e34638a86948795]*/
 {
     int ret;
 
     Py_BEGIN_ALLOW_THREADS
-    ret = fcopyfile(infd, outfd, NULL, flags);
+    ret = fcopyfile(in_fd, out_fd, NULL, flags);
     Py_END_ALLOW_THREADS
     if (ret < 0)
         return posix_error();