Fix missing `f` prefix on f-strings (GH-91910)

Lib/asyncio/base_events.py

@@ -888,7 +888,7 @@ class BaseEventLoop(events.AbstractEventLoop):
         # non-mmap files even if sendfile is supported by OS
         raise exceptions.SendfileNotAvailableError(
             f"syscall sendfile is not available for socket {sock!r} "
-            "and file {file!r} combination")
+            f"and file {file!r} combination")
 
     async def _sock_sendfile_fallback(self, sock, file, offset, count):
         if offset:

Lib/multiprocessing/util.py

@@ -120,7 +120,7 @@ def is_abstract_socket_namespace(address):
         return address[0] == 0
     elif isinstance(address, str):
         return address[0] == "\0"
-    raise TypeError('address type of {address!r} unrecognized')
+    raise TypeError(f'address type of {address!r} unrecognized')
 
 
 abstract_sockets_supported = _platform_supports_abstract_sockets()

Misc/NEWS.d/next/Library/2022-04-25-14-18-01.gh-issue-91910.kY-JR0.rst

@@ -0,0 +1 @@
+Add missing f prefix to f-strings in error messages from the :mod:`multiprocessing` and :mod:`asyncio` modules.