diff --git a/mpisppy/cylinders/cross_scen_spoke.py b/mpisppy/cylinders/cross_scen_spoke.py
index fe9ad0c2..462bca57 100644
--- a/mpisppy/cylinders/cross_scen_spoke.py
+++ b/mpisppy/cylinders/cross_scen_spoke.py
@@ -6,6 +6,10 @@
 # All rights reserved. Please see the files COPYRIGHT.md and LICENSE.md for
 # full copyright and license information.
 ###############################################################################
+
+# TODO Remove after this program no longer support Python 3.8
+from __future__ import annotations
+
 from mpisppy.cylinders.spcommunicator import communicator_array
 from pyomo.repn.standard_repn import generate_standard_repn
 from mpisppy import MPI
diff --git a/mpisppy/cylinders/hub.py b/mpisppy/cylinders/hub.py
index cb81751b..135a1d6a 100644
--- a/mpisppy/cylinders/hub.py
+++ b/mpisppy/cylinders/hub.py
@@ -6,6 +6,10 @@
 # All rights reserved. Please see the files COPYRIGHT.md and LICENSE.md for
 # full copyright and license information.
 ###############################################################################
+
+# TODO Remove after this program no longer support Python 3.8
+from __future__ import annotations
+
 import numpy as np
 import abc
 import logging
@@ -740,10 +744,7 @@ def send_nonants(self):
                 nonant_send_buffer[ci] = nonant_to_root_var_map[xvar]._value
                 ci += 1
         logging.debug("hub is sending X nonants={}".format(nonant_send_buffer))
-        self._populate_boundsout_cache(nonant_send_buffer)
 
-        # for idx in self.nonant_spoke_indices:
-        #     self.hub_to_spoke(nonant_send_buffer, idx)
         my_nonants = self._sends[Field.NONANT]
         self.hub_to_spoke(nonant_send_buffer, Field.NONANT, my_nonants.next_write_id())
 
diff --git a/mpisppy/cylinders/lshaped_bounder.py b/mpisppy/cylinders/lshaped_bounder.py
index b4bc9c40..550ea522 100644
--- a/mpisppy/cylinders/lshaped_bounder.py
+++ b/mpisppy/cylinders/lshaped_bounder.py
@@ -62,7 +62,7 @@ def main(self):
         while not self.got_kill_signal():
 
             if self.new_nonants:
-                
+
                 self.opt._put_nonant_cache(self.localnonants)
                 self.opt._restore_nonants()
                 obj = self.opt.calculate_incumbent(fix_nonants=True)
diff --git a/mpisppy/cylinders/spcommunicator.py b/mpisppy/cylinders/spcommunicator.py
index 0681add2..ec175dd7 100644
--- a/mpisppy/cylinders/spcommunicator.py
+++ b/mpisppy/cylinders/spcommunicator.py
@@ -18,13 +18,16 @@
 
     Separate hub and spoke classes for memory/window management?
 """
+
+# TODO Remove after this program no longer support Python 3.8
+from __future__ import annotations
+
 import numpy as np
 import abc
 import time
 
 from mpisppy.cylinders.spwindow import Field, SPWindow
 
-
 def communicator_array(size):
     arr = np.empty(size+1)
     arr[:] = np.nan
diff --git a/mpisppy/cylinders/spoke.py b/mpisppy/cylinders/spoke.py
index 6931e482..f7763d4a 100644
--- a/mpisppy/cylinders/spoke.py
+++ b/mpisppy/cylinders/spoke.py
@@ -6,6 +6,10 @@
 # All rights reserved. Please see the files COPYRIGHT.md and LICENSE.md for
 # full copyright and license information.
 ###############################################################################
+
+# TODO Remove after this program no longer support Python 3.8
+from __future__ import annotations
+
 import numpy as np
 import abc
 import enum
diff --git a/mpisppy/cylinders/spwindow.py b/mpisppy/cylinders/spwindow.py
index 46d7b0b5..e0114b9f 100644
--- a/mpisppy/cylinders/spwindow.py
+++ b/mpisppy/cylinders/spwindow.py
@@ -70,8 +70,6 @@ def __init__(self, my_fields: dict, strata_comm: MPI.Comm, field_order=None):
             self.buff[offset + length - 1] = 0.0
         ## End for
 
-        # print(self.buff)
-
         self.strata_buffer_layouts = strata_comm.allgather(self.buffer_layout)
 
         self.window_constructed = True