Merge pull request #45 from osscca/master

Small PEP8 corrections

facade.py

@@ -5,6 +5,7 @@ import time
 
 SLEEP = 0.5
 
+
 # Complex Parts
 class TC1:
     def run(self):
@@ -68,16 +69,16 @@ if __name__ == '__main__':
 # Running test
 # Tearing down
 # Test Finished
-# 
+#
 # ###### In Test 2 ######
 # Setting up
 # Running test
 # Tearing down
 # Test Finished
-# 
+#
 # ###### In Test 3 ######
 # Setting up
 # Running test
 # Tearing down
 # Test Finished
-# 
+#

memento.py

@@ -91,7 +91,8 @@ if __name__ == '__main__':
         n.DoStuff()
     except:
         print('-> doing stuff failed!')
-        import sys, traceback
+        import sys
+        import traceback
         traceback.print_exc(file=sys.stdout)
         pass
     print(n)

publish_subscribe.py

@@ -1,10 +1,10 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-'''
+"""
 Reference: http://www.slideshare.net/ishraqabd/publish-subscribe-model-overview-13368808
 Author: https://github.com/HanWenfang
-'''
+"""
 
 
 class Provider: