adapt xdist plugin - it still uses some internal imports

testing/test_dsession.py

@@ -1,5 +1,5 @@
 from xdist.dsession import DSession, LoadScheduling, EachScheduling
-from py._test import session as outcome
+from pytest.plugin import pytest_session as outcome
 import py
 import execnet
 
@@ -140,7 +140,7 @@ class TestDistReporter:
     @py.test.mark.xfail
     def test_rsync_printing(self, testdir, linecomp):
         config = testdir.parseconfig()
-        from py._plugin.pytest_terminal import TerminalReporter
+        from pytest.plugin.pytest_terminal import TerminalReporter
         rep = TerminalReporter(config, file=linecomp.stringio)
         config.pluginmanager.register(rep, "terminalreporter")
         dsession = DSession(config)