code cleanup after running flake8

arduino_timetable/timetable.py

@@ -175,6 +175,7 @@ def time_as_timedelta(time_object):
         microseconds=time_object.microsecond
         )
 
+
 def parse_command(command, available_commands=None):
     ''' parses a string and checks if it is a valid command
 
@@ -306,7 +307,6 @@ class TimedCommands(object):
         port = port or find_arduino_port()
         self.serial = serial.Serial(port, baudrate, **serial_kwargs)
 
-
     def _ensure_command_dict(self, iterable):
         ''' ensures, that the available commands are a dictionary
 
@@ -333,12 +333,10 @@ class TimedCommands(object):
             msg = 'available commands should be a list or dict of strings'
             raise TypeError(msg)
 
-
     def run(self):
         ''' run the scheduled commands '''
         run(self.commands, self.serial)
 
-
     def close(self):
         ''' closes an open serial connection '''
         self.serial.close()

setup.py

@@ -6,13 +6,8 @@ derived from https://github.com/pypa/sampleproject
 # Always prefer setuptools over distutils
 from setuptools import setup, find_packages
 
-# To use a consistent encoding
-import codecs
 import os
-
-# regular expressions for version string parsing from __init___.py
 import re
-import io
 
 
 # the current directory of this file
@@ -29,6 +24,7 @@ def read(*names, **kwargs):
     with open(path, 'r', encoding=encoding) as file_handle:
         return file_handle.read()
 
+
 def find_version(*file_paths):
     ''' # version string parsing from __init___.py