diff --git a/python/pacemaker/_cts/tests/restartonebyone.py b/python/pacemaker/_cts/tests/restartonebyone.py
index 30fe124388..ffed0f40f4 100644
--- a/python/pacemaker/_cts/tests/restartonebyone.py
+++ b/python/pacemaker/_cts/tests/restartonebyone.py
@@ -1,49 +1,59 @@
 """ Restart all nodes in order """
 
 __all__ = ["RestartOnebyOne"]
 __copyright__ = "Copyright 2000-2023 the Pacemaker project contributors"
 __license__ = "GNU General Public License version 2 or later (GPLv2+) WITHOUT ANY WARRANTY"
 
 from pacemaker._cts.tests.ctstest import CTSTest
 from pacemaker._cts.tests.restarttest import RestartTest
 from pacemaker._cts.tests.simulstartlite import SimulStartLite
 
+# Disable various pylint warnings that occur in so many places throughout this
+# file it's easiest to just take care of them globally.  This does introduce the
+# possibility that we'll miss some other cause of the same warning, but we'll
+# just have to be careful.
+
+# pylint doesn't understand that self._env is subscriptable.
+# pylint: disable=unsubscriptable-object
+
 
 class RestartOnebyOne(CTSTest):
     """ A concrete test that restarts all nodes in order """
 
     def __init__(self, cm):
         """ Create a new RestartOnebyOne instance
 
             Arguments:
 
             cm -- A ClusterManager instance
         """
 
         CTSTest.__init__(self, cm)
 
         self.name = "RestartOnebyOne"
+
+        self._restart = None
         self._startall = SimulStartLite(cm)
 
     def __call__(self, dummy):
         """ Perform the test """
 
         self.incr("calls")
 
         ret = self._startall(None)
         if not ret:
             return self.failure("Setup failed")
 
         did_fail = []
         self.set_timer()
-        self.restart = RestartTest(self._cm)
+        self._restart = RestartTest(self._cm)
 
         for node in self._env["nodes"]:
-            if not self.restart(node):
+            if not self._restart(node):
                 did_fail.append(node)
 
         if did_fail:
             return self.failure("Could not restart %d nodes: %s"
                                 % (len(did_fail), repr(did_fail)))
 
         return self.success()