old_contents: from alternator import *
  from appeaser import *
  from averagecopier import *
  from cooperator import *
  from darwin import *
  from defector import *
  from forgiver import *
  from geller import *
  from gobymajority import *
  from grudger import *
  from grumpy import *
  from hunter import *
  from inverse import *
  from mathematicalconstants import *
  from memoryone import *
  from meta import *
  from mindcontrol import *
  from mindreader import *
  from oncebitten import *
  from punisher import *
  from qlearner import *
  from rand import *
  from retaliate import *
  from titfortat import *
  
  basic_strategies = [
      Alternator,
      Cooperator,
      Defector,
      Random,
      TitForTat,
  ]
  
  ordinary_strategies = [
      AlternatorHunter,
      Appeaser,
      AntiTitForTat,
      ArrogantQLearner,
      AverageCopier,
      Bully,
      CautiousQLearner,
      CooperatorHunter,
      Davis,
      DefectorHunter,
      FoolMeOnce,
      ForgetfulFoolMeOnce,
      ForgetfulGrudger,
      Forgiver,
      ForgivingTitForTat,
      GTFT,
      GoByMajority,
      GoByMajority10,
      GoByMajority20,
      GoByMajority40,
      GoByMajority5,
      Feld,
      Golden,
      Grofman,
      Grudger,
      Grumpy,
      HardTitForTat,
      HardTitFor2Tats,
      HesitantQLearner,
      Inverse,
      InversePunisher,
      Joss,
      LimitedRetaliate,
      LimitedRetaliate2,
      LimitedRetaliate3,
      MathConstantHunter,
      MetaHunter,
      MetaMajority,
      MetaMinority,
      MetaWinner,
      NiceAverageCopier,
      OnceBitten,
      OppositeGrudger,
      Pi,
      Punisher,
      RandomHunter,
      Retaliate,
      Retaliate2,
      Retaliate3,
      RiskyQLearner,
      Shubik,
      SneakyTitForTat,
      StochasticWSLS,
      SuspiciousTitForTat,
      TitFor2Tats,
      TrickyCooperator,
      TrickyDefector,
      Tullock,
      TwoTitsForTat,
      WinStayLoseShift,
      ZDExtort2,
      ZDGTFT2,
      e,
  ]
  
  # These are strategies that do not follow the rules of Axelrods tournament
  cheating_strategies = [
      Darwin,
      Geller,
      GellerCooperator,
      GellerDefector,
      MindBender,
      MindController,
      MindReader,
      MindWarper,
      ProtectedMindReader,
  ]
  
new_contents: from alternator import *
  from appeaser import *
  from averagecopier import *
  from cooperator import *
  from darwin import *
  from defector import *
  from forgiver import *
  from geller import *
  from gobymajority import *
  from grudger import *
  from grumpy import *
  from hunter import *
  from inverse import *
  from mathematicalconstants import *
  from memoryone import *
  from meta import *
  from mindcontrol import *
  from mindreader import *
  from oncebitten import *
  from punisher import *
  from qlearner import *
  from rand import *
  from retaliate import *
  from titfortat import *
  
  basic_strategies = [
      Alternator,
      Cooperator,
      Defector,
      Random,
      TitForTat,
  ]
  
  ordinary_strategies = [
      AlternatorHunter,
      Appeaser,
      AntiTitForTat,
      ArrogantQLearner,
      AverageCopier,
      Bully,
      CautiousQLearner,
      CooperatorHunter,
      Davis,
      DefectorHunter,
      FoolMeOnce,
      ForgetfulFoolMeOnce,
      ForgetfulGrudger,
      Forgiver,
      ForgivingTitForTat,
      GTFT,
      GoByMajority,
      GoByMajority10,
      GoByMajority20,
      GoByMajority40,
      GoByMajority5,
      Feld,
      Golden,
      Grofman,
      Grudger,
      Grumpy,
      HardTitForTat,
      HardTitFor2Tats,
      HesitantQLearner,
      Inverse,
      InversePunisher,
      Joss,
      LimitedRetaliate,
      LimitedRetaliate2,
      LimitedRetaliate3,
      MathConstantHunter,
      MetaHunter,
      MetaMajority,
      MetaMinority,
      MetaWinner,
      NiceAverageCopier,
      OnceBitten,
      OppositeGrudger,
      Pi,
      Punisher,
      RandomHunter,
      Retaliate,
      Retaliate2,
      Retaliate3,
      RiskyQLearner,
      Shubik,
      SneakyTitForTat,
      StochasticWSLS,
      SuspiciousTitForTat,
      Tester,
      TitFor2Tats,
      TrickyCooperator,
      TrickyDefector,
      Tullock,
      TwoTitsForTat,
      WinStayLoseShift,
      ZDExtort2,
      ZDGTFT2,
      e,
  ]
  
  # These are strategies that do not follow the rules of Axelrods tournament
  cheating_strategies = [
      Darwin,
      Geller,
      GellerCooperator,
      GellerDefector,
      MindBender,
      MindController,
      MindReader,
      MindWarper,
      ProtectedMindReader,
  ]
  
subject: Add Tester to _strategies.py