old_contents: import spstore
  from backtrader.metabase import MetaParams
  from backtrader.utils.py3 import with_metaclass
  from backtrader.brokers.bbroker import BackBroker
  
  class MetaSharpPointBackTester(MetaParams):
      def __init__(cls, name, bases, dct):
          '''Class has already been created ... register'''
          # Initialize the class
          spstore.SharpPointStore.BackTestCls = cls
  
  class SharpPointBackTester(with_metaclass(MetaSharpPointBackTester,
                                            BackBroker)):
      params = ()
      def init(self):
          super(SharpPointBackTester, self).init()
      def getcommissioninfo(self, data):
          if data._name in self.comminfo:
              return self.comminfo[data._name]
          if data._name[0:3] == 'HSI':
              self.setcommission(stocklike=False, mult=50.0, name=data._name)
          elif data._name[0:3] == 'MHI':
              self.setcommission(stocklike=False, mult=10.0, name=data._name)
          print(self.comminfo)
          return super(SharpPointBackTester, self).getcommissioninfo(data)
  
new_contents: import spstore
  from backtrader.metabase import MetaParams
  from backtrader.utils.py3 import with_metaclass
  from backtrader.brokers.bbroker import BackBroker
  from backtrader.comminfo import CommInfoBase
  
  class MetaSharpPointBackTester(MetaParams):
      def __init__(cls, name, bases, dct):
          '''Class has already been created ... register'''
          # Initialize the class
          spstore.SharpPointStore.BackTestCls = cls
  
  class SharpPointBackTester(with_metaclass(MetaSharpPointBackTester,
                                            BackBroker)):
      params = ()
      def init(self):
          super(SharpPointBackTester, self).init()
      def getcommissioninfo(self, data):
          if data._name in self.comminfo:
              return self.comminfo[data._name]
          if data._name[0:3] == 'HSI':
              self.setcommission(stocklike=False, mult=50.0,
                                 name=data._name,
                                 commtype=CommInfoBase.COMM_FIXED)
          elif data._name[0:3] == 'MHI':
              self.setcommission(stocklike=False, mult=10.0,
                                 name=data._name,
                                 commtype=CommInfoBase.COMM_FIXED)
          print(self.comminfo)
          return super(SharpPointBackTester, self).getcommissioninfo(data)
  
subject: change commission for backtester