Revert "bpo-32221: makeipaddr(): remove interface part + speedup (GH-4724)" (#5394)

This reverts commit 47c0b1f7d4.

Doc/library/socket.rst

@@ -77,11 +77,6 @@ created.  Socket addresses are represented as follows:
   backward compatibility.  Note, however, omission of *scopeid* can cause problems
   in manipulating scoped IPv6 addresses.
 
-  .. versionchanged:: 3.7
-     For multicast addresses (with *scopeid* meaningful) *address* may not contain
-     ``%scope`` (or ``zone id``) part. This information is superfluous and may
-     be safely omitted (recommended).
-
 - :const:`AF_NETLINK` sockets are represented as pairs ``(pid, groups)``.
 
 - Linux-only support for TIPC is available using the :const:`AF_TIPC`
@@ -635,10 +630,6 @@ The :mod:`socket` module also offers various network-related services:
    .. versionchanged:: 3.2
       parameters can now be passed using keyword arguments.
 
-   .. versionchanged:: 3.7
-      for IPv6 multicast addresses, string representing an address will not
-      contain ``%scope`` part.
-
 .. function:: getfqdn([name])
 
    Return a fully qualified domain name for *name*. If *name* is omitted or empty,
@@ -697,8 +688,6 @@ The :mod:`socket` module also offers various network-related services:
    or numeric address representation in *host*.  Similarly, *port* can contain a
    string port name or a numeric port number.
 
-   For IPv6 addresses, ``%scope`` is appended to the host part if *sockaddr*
-   contains meaningful *scopeid*. Usually this happens for multicast addresses.
 
 .. function:: getprotobyname(protocolname)
 
@@ -1189,10 +1178,6 @@ to sockets.
       an exception, the method now retries the system call instead of raising
       an :exc:`InterruptedError` exception (see :pep:`475` for the rationale).
 
-   .. versionchanged:: 3.7
-      For multicast IPv6 address, first item of *address* does not contain
-      ``%scope`` part anymore. In order to get full IPv6 address use
-      :func:`getnameinfo`.
 
 .. method:: socket.recvmsg(bufsize[, ancbufsize[, flags]])