diff --git a/tutorial/php/runserver.py b/tutorial/php/runserver.py
index 077daa1..8cc30fb 100755
--- a/tutorial/php/runserver.py
+++ b/tutorial/php/runserver.py
@@ -30,4 +30,5 @@
 class Handler(CGIHTTPServer.CGIHTTPRequestHandler):
     cgi_directories = ['/php']
 
+
 BaseHTTPServer.HTTPServer(('', 8080), Handler).serve_forever()
diff --git a/tutorial/py.twisted/PythonClient.py b/tutorial/py.twisted/PythonClient.py
index 63dde7e..2976495 100755
--- a/tutorial/py.twisted/PythonClient.py
+++ b/tutorial/py.twisted/PythonClient.py
@@ -67,6 +67,7 @@
     print(('Check log: %s' % (log.value)))
     reactor.stop()
 
+
 if __name__ == '__main__':
     d = ClientCreator(reactor,
                       TTwisted.ThriftClientProtocol,
diff --git a/tutorial/py.twisted/PythonServer.py b/tutorial/py.twisted/PythonServer.py
index 1b0e2d5..034e4a3 100755
--- a/tutorial/py.twisted/PythonServer.py
+++ b/tutorial/py.twisted/PythonServer.py
@@ -85,6 +85,7 @@
     def zip(self):
         print('zip()')
 
+
 if __name__ == '__main__':
     handler = CalculatorHandler()
     processor = Calculator.Processor(handler)