style: some of the suggestions from flake8
diff --git a/examples/at_protocol.py b/examples/at_protocol.py
index a3ccdfd..36eb6bd 100644
--- a/examples/at_protocol.py
+++ b/examples/at_protocol.py
@@ -122,7 +122,7 @@
         def handle_event(self, event):
             """Handle events and command responses starting with '+...'"""
             if event.startswith('+RRBDRES') and self._awaiting_response_for.startswith('AT+JRBD'):
-                rev = event[9:9+12]
+                rev = event[9:9 + 12]
                 mac = ':'.join('%02X' % ord(x) for x in rev.decode('hex')[::-1])
                 self.event_responses.put(mac)
             else:
diff --git a/examples/rfc2217_server.py b/examples/rfc2217_server.py
index c94b837..10c47c5 100755
--- a/examples/rfc2217_server.py
+++ b/examples/rfc2217_server.py
@@ -192,4 +192,3 @@
             logging.error(str(msg))
 
     logging.info('--- exit ---')
-
diff --git a/examples/setup-miniterm-py2exe.py b/examples/setup-miniterm-py2exe.py
index 8784bfe..50ea0c3 100644
--- a/examples/setup-miniterm-py2exe.py
+++ b/examples/setup-miniterm-py2exe.py
@@ -6,7 +6,6 @@
 
 from distutils.core import setup
 import sys
-import py2exe
 
 sys.path.insert(0, '..')
 
diff --git a/examples/setup-wxTerminal-py2exe.py b/examples/setup-wxTerminal-py2exe.py
index caff719..bf2ca85 100644
--- a/examples/setup-wxTerminal-py2exe.py
+++ b/examples/setup-wxTerminal-py2exe.py
@@ -7,7 +7,6 @@
 from distutils.core import setup
 import os
 import sys
-import py2exe
 
 # this script is only useful for py2exe so just run that distutils command.
 # that allows to run it with a simple double click.
@@ -17,10 +16,11 @@
 icon = os.path.join(os.path.dirname(sys.executable), 'py.ico')
 
 setup(
-    options={'py2exe': {
-        'excludes': ['javax.comm'],
-        'optimize': 2,
-        'dist_dir': 'dist',
+    options={
+        'py2exe': {
+            'excludes': ['javax.comm'],
+            'optimize': 2,
+            'dist_dir': 'dist',
         }
     },