diff --git a/tutorial/py.twisted/PythonClient.py b/tutorial/py.twisted/PythonClient.py
index e80c0fc..63dde7e 100755
--- a/tutorial/py.twisted/PythonClient.py
+++ b/tutorial/py.twisted/PythonClient.py
@@ -19,51 +19,53 @@
 # under the License.
 #
 
-import sys, glob
+import glob
+import sys
 sys.path.append('gen-py.twisted')
 sys.path.insert(0, glob.glob('../../lib/py/build/lib*')[0])
 
 from tutorial import Calculator
-from tutorial.ttypes import *
+from tutorial.ttypes import InvalidOperation, Operation, Work
 
 from twisted.internet.defer import inlineCallbacks
 from twisted.internet import reactor
 from twisted.internet.protocol import ClientCreator
 
-from thrift import Thrift
 from thrift.transport import TTwisted
 from thrift.protocol import TBinaryProtocol
 
+
 @inlineCallbacks
 def main(client):
-  yield client.ping()
-  print('ping()')
+    yield client.ping()
+    print('ping()')
 
-  sum = yield client.add(1,1)
-  print(('1+1=%d' % (sum)))
+    sum = yield client.add(1, 1)
+    print(('1+1=%d' % (sum)))
 
-  work = Work()
+    work = Work()
 
-  work.op = Operation.DIVIDE
-  work.num1 = 1
-  work.num2 = 0
+    work.op = Operation.DIVIDE
+    work.num1 = 1
+    work.num2 = 0
 
-  try:
-    quotient = yield client.calculate(1, work)
-    print('Whoa? You know how to divide by zero?')
-  except InvalidOperation as e:
-    print(('InvalidOperation: %r' % e))
+    try:
+        quotient = yield client.calculate(1, work)
+        print('Whoa? You know how to divide by zero?')
+        print('FYI the answer is %d' % quotient)
+    except InvalidOperation as e:
+        print(('InvalidOperation: %r' % e))
 
-  work.op = Operation.SUBTRACT
-  work.num1 = 15
-  work.num2 = 10
+    work.op = Operation.SUBTRACT
+    work.num1 = 15
+    work.num2 = 10
 
-  diff = yield client.calculate(1, work)
-  print(('15-10=%d' % (diff)))
+    diff = yield client.calculate(1, work)
+    print(('15-10=%d' % (diff)))
 
-  log = yield client.getStruct(1)
-  print(('Check log: %s' % (log.value)))
-  reactor.stop()
+    log = yield client.getStruct(1)
+    print(('Check log: %s' % (log.value)))
+    reactor.stop()
 
 if __name__ == '__main__':
     d = ClientCreator(reactor,