Use new form of with-statement instead of contextlib.nested().
diff --git a/Lib/test/support.py b/Lib/test/support.py
index bdc6b89..da81422 100644
--- a/Lib/test/support.py
+++ b/Lib/test/support.py
@@ -591,13 +591,11 @@
raise ResourceDenied("an optional resource is not available")
-def transient_internet():
- """Return a context manager that raises ResourceDenied when various issues
- with the Internet connection manifest themselves as exceptions."""
- time_out = TransientResource(IOError, errno=errno.ETIMEDOUT)
- socket_peer_reset = TransientResource(socket.error, errno=errno.ECONNRESET)
- ioerror_peer_reset = TransientResource(IOError, errno=errno.ECONNRESET)
- return contextlib.nested(time_out, socket_peer_reset, ioerror_peer_reset)
+# Context managers that raise ResourceDenied when various issues
+# with the Internet connection manifest themselves as exceptions.
+time_out = TransientResource(IOError, errno=errno.ETIMEDOUT)
+socket_peer_reset = TransientResource(socket.error, errno=errno.ECONNRESET)
+ioerror_peer_reset = TransientResource(IOError, errno=errno.ECONNRESET)
@contextlib.contextmanager