[pull] main from python:main

Doc/library/os.rst

@@ -1011,10 +1011,14 @@ as internal buffering of data.
       It will always copy no bytes and return 0 as if the file was empty
       because of a known Linux kernel issue.
 
-   .. availability:: Linux >= 4.5 with glibc >= 2.27.
+   .. availability:: Linux >= 4.5.
 
    .. versionadded:: 3.8
 
+   .. versionchanged:: 3.16
+      The function is now also available when Python is built against a libc
+      that lacks ``copy_file_range()``, such as glibc older than 2.27.
+
 
 .. function:: device_encoding(fd)
 
@@ -4400,10 +4404,14 @@ The following flags are used in :attr:`statvfs_result.f_flag`.
    the file descriptor, and as such multiple files can have the same name
    without any side effects.
 
-   .. availability:: Linux >= 3.17 with glibc >= 2.27.
+   .. availability:: Linux >= 3.17.
 
    .. versionadded:: 3.8
 
+   .. versionchanged:: 3.16
+      The function is now also available when Python is built against a libc
+      that lacks ``memfd_create()``, such as glibc older than 2.27.
+
 
 .. data:: MFD_CLOEXEC
           MFD_ALLOW_SEALING

Include/internal/pycore_global_strings.h

@@ -319,6 +319,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(argv)
         STRUCT_FOR_ID(as_integer_ratio)
         STRUCT_FOR_ID(asend)
+        STRUCT_FOR_ID(assoclen)
         STRUCT_FOR_ID(ast)
         STRUCT_FOR_ID(athrow)
         STRUCT_FOR_ID(attr)
@@ -534,6 +535,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(headers)
         STRUCT_FOR_ID(hi)
         STRUCT_FOR_ID(hook)
+        STRUCT_FOR_ID(host)
         STRUCT_FOR_ID(hour)
         STRUCT_FOR_ID(hours)
         STRUCT_FOR_ID(id)
@@ -582,6 +584,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(iter)
         STRUCT_FOR_ID(iterable)
         STRUCT_FOR_ID(iterations)
+        STRUCT_FOR_ID(iv)
         STRUCT_FOR_ID(join)
         STRUCT_FOR_ID(jump)
         STRUCT_FOR_ID(keepends)
@@ -660,6 +663,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(namespace_separator)
         STRUCT_FOR_ID(namespaces)
         STRUCT_FOR_ID(native)
+        STRUCT_FOR_ID(nbytes)
         STRUCT_FOR_ID(ndigits)
         STRUCT_FOR_ID(nested)
         STRUCT_FOR_ID(new_file_name)
@@ -684,6 +688,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(onceregistry)
         STRUCT_FOR_ID(only_active_thread)
         STRUCT_FOR_ID(only_keys)
+        STRUCT_FOR_ID(op)
         STRUCT_FOR_ID(oparg)
         STRUCT_FOR_ID(opcode)
         STRUCT_FOR_ID(opcodes)
@@ -718,6 +723,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(pidfd)
         STRUCT_FOR_ID(pointer_bits)
         STRUCT_FOR_ID(policy)
+        STRUCT_FOR_ID(port)
         STRUCT_FOR_ID(pos)
         STRUCT_FOR_ID(pos1)
         STRUCT_FOR_ID(pos2)