diff --git a/bin/mn b/bin/mn
index d5cc0f1..fa98ca8 100755
--- a/bin/mn
+++ b/bin/mn
@@ -21,7 +21,8 @@ if 'PYTHONPATH' in os.environ:
     sys.path = os.environ[ 'PYTHONPATH' ].split( ':' ) + sys.path
 
 from mininet.clean import cleanup
-from mininet.cli import CLI as CLI
+from mininet.cli import CLI
+CLI  # workaround for pylint "CLI unused" error
 from mininet.log import lg, LEVELS, info, debug, warn, error, output
 from mininet.net import Mininet, MininetWithControlNet, VERSION
 from mininet.node import ( Host, CPULimitedHost, Controller, OVSController,
diff --git a/examples/clusterdemo.py b/examples/clusterdemo.py
index 66d510e..b69313d 100755
--- a/examples/clusterdemo.py
+++ b/examples/clusterdemo.py
@@ -3,7 +3,8 @@
 "clusterdemo.py: demo of Mininet Cluster Edition prototype"
 
 from mininet.examples.cluster import MininetCluster, SwitchBinPlacer
-from cluster import RemoteLink, RemoteSSHLink, RemoteGRELink
+from cluster import RemoteLink
+# Could also use: RemoteSSHLink, RemoteGRELink
 from mininet.topolib import TreeTopo
 from mininet.log import setLogLevel
 from mininet.examples.clustercli import ClusterCLI as CLI
diff --git a/examples/cpu.py b/examples/cpu.py
index e0479b5..3580811 100755
--- a/examples/cpu.py
+++ b/examples/cpu.py
@@ -31,7 +31,7 @@ rate includes buffering.
 from mininet.net import Mininet
 from mininet.node import CPULimitedHost
 from mininet.topolib import TreeTopo
-from mininet.util import custom, waitListening, pmonitor
+from mininet.util import custom, waitListening
 from mininet.log import setLogLevel, info