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.

1 files changed, 10 insertions, 11 deletions

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index aeb0e9ddb1..3c4e254abb 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();