diff --git a/zmq/cl-zmq.py b/zmq/cl-zmq.py
index 23b4a24..7a1ecb8 100755
--- a/zmq/cl-zmq.py
+++ b/zmq/cl-zmq.py
@@ -28,7 +28,6 @@
 # NOTIFICATION_TYPE_NAMES below.
 ###############################################################################
 
-import time
 import json
 import functools
 
@@ -50,10 +49,12 @@ NOTIFICATION_TYPE_NAMES = ['channel_opened',
                            'sendpay_success',
                            'sendpay_failure']
 
+
 class NotificationType():
     """ Wrapper for notification type string to generate the corresponding
         plugin option strings. By convention of lightningd, the cli options
         use dashes in place of rather than underscores or no spaces."""
+
     def __init__(self, notification_type_name):
         self.notification_type_name = notification_type_name
 
@@ -66,15 +67,18 @@ class NotificationType():
     def hwm_option(self):
         return "zmq-pub-{}-hwm".format(str(self).replace("_", "-"))
 
+
 NOTIFICATION_TYPES = [NotificationType(n) for n in NOTIFICATION_TYPE_NAMES]
 
 ###############################################################################
 
+
 class Publisher():
     """ Holds the connection state and accepts incoming notifications that
         come from the subscription. If there is an associated publishing
         endpoint connected, it will encode and pass the contents of the
         notification. """
+
     def __init__(self):
         self.factory = ZmqFactory()
         self.connection_map = {}
@@ -95,12 +99,14 @@ class Publisher():
         connection = self.connection_map[notification_type_name]
         connection.publish(message, tag=tag)
 
+
 publisher = Publisher()
 
 ###############################################################################
 
 ZMQ_TRANSPORT_PREFIXES = ['tcp://', "ipc://", 'inproc://', "pgm://", "epgm://"]
 
+
 class Setup():
     """ Does some light validation of the plugin option input and generates a
         dictionary to configure the Twisted and ZeroMQ setup """
@@ -125,7 +131,7 @@ class Setup():
                        level='warn')
         for endpoint in Setup._iter_endpoints_not_ok(options):
             plugin.log(("Endpoint option {} doesn't appear to be recognized"
-                       ).format(endpoint), level='warn')
+                        ).format(endpoint), level='warn')
 
     ###########################################################################
 
@@ -144,7 +150,7 @@ class Setup():
         for e, nt, hwm in Setup._iter_endpoint_setup(options):
             if e not in setup:
                 setup[e] = {'notification_type_names': [],
-                            'high_water_mark':         hwm}
+                            'high_water_mark': hwm}
             setup[e]['notification_type_names'].append(str(nt))
             # use the lowest high water mark given for the endpoint
             setup[e]['high_water_mark'] = min(
@@ -165,6 +171,7 @@ class Setup():
 
 plugin = Plugin()
 
+
 @plugin.init()
 def init(options, configuration, plugin, **kwargs):
     Setup.check_option_warnings(options, plugin)
@@ -172,18 +179,20 @@ def init(options, configuration, plugin, **kwargs):
     Setup.log_setup_dict(setup_dict, plugin)
     reactor.callFromThread(publisher.load_setup, setup_dict)
 
+
 def on_notification(notification_type_name, plugin, *args, **kwargs):
     if len(args) != 0:
         plugin.log("got unexpected args: {}".format(args), level="warn")
     reactor.callFromThread(publisher.publish_notification,
                            notification_type_name, *args, **kwargs)
 
+
 DEFAULT_HIGH_WATER_MARK = 1000
 
 for nt in NOTIFICATION_TYPES:
     # subscribe to all notifications
     on = functools.partial(on_notification, str(nt))
-    on.__annotations__ = {} # needed to please Plugin._coerce_arguments()
+    on.__annotations__ = {}  # needed to please Plugin._coerce_arguments()
     plugin.add_subscription(str(nt), on)
     # zmq socket binding option
     endpoint_opt = nt.endpoint_option()
@@ -198,9 +207,11 @@ for nt in NOTIFICATION_TYPES:
 
 ###############################################################################
 
+
 def plugin_thread():
     plugin.run()
     reactor.callFromThread(reactor.stop)
 
+
 reactor.callInThread(plugin_thread)
 reactor.run()
diff --git a/zmq/example-subscriber.py b/zmq/example-subscriber.py
index 22608e4..ed86d1d 100755
--- a/zmq/example-subscriber.py
+++ b/zmq/example-subscriber.py
@@ -35,7 +35,6 @@ import json
 import argparse
 
 from twisted.internet import reactor
-from twisted.internet.task import LoopingCall
 
 from txzmq import ZmqEndpoint, ZmqEndpointType
 from txzmq import ZmqFactory
@@ -52,6 +51,7 @@ NOTIFICATION_TYPE_NAMES = ['channel_opened',
                            'sendpay_success',
                            'sendpay_failure']
 
+
 class NotificationType():
     def __init__(self, notification_type_name):
         self.notification_type_name = notification_type_name
@@ -65,10 +65,12 @@ class NotificationType():
     def argparse_namespace_attribute(self):
         return "zmq_sub_{}".format((self))
 
+
 NOTIFICATION_TYPES = [NotificationType(n) for n in NOTIFICATION_TYPE_NAMES]
 
 ###############################################################################
 
+
 class Subscriber():
     def __init__(self):
         self.factory = ZmqFactory()
@@ -76,7 +78,7 @@ class Subscriber():
     def _log_message(self, message, tag):
         tag = tag.decode("utf8")
         message = json.dumps(json.loads(message.decode("utf8")), indent=1,
-                              sort_keys=True)
+                             sort_keys=True)
         current_time = time.strftime('%X %x %Z')
         print("{} - {}\n{}".format(current_time, tag, message))