text: input_files = [
  'BristolAnalysis/NTupleTools/data/PileUp/Data_PUDist_2011Full.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Data_PUDist_2011Full_64600mb_June2014.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Data_PUDist_2011Full_71400mb_June2014.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Data_PUDist_2011Full_central_68000mb_June2014.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Data_PUDist_2012Full.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Data_PUDist_2012Full_65835mb.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Data_PUDist_2012Full_72765mb.root',
  'BristolAnalysis/NTupleTools/data/PileUp/MC_PUDist_Default2011.root',
  'BristolAnalysis/NTupleTools/data/PileUp/MC_PUDist_Default2012.root',
  'BristolAnalysis/NTupleTools/data/PileUp/MC_PUDist_DefaultSummer11Leg.root',
  'BristolAnalysis/NTupleTools/data/PileUp/MC_PUDist_Summer2012.root',
  'BristolAnalysis/NTupleTools/data/PileUp/PileUp_2011.root',
  'BristolAnalysis/NTupleTools/data/PileUp/PileUp_2011_truth.root',
  'BristolAnalysis/NTupleTools/data/PileUp/PileUp_2011_truth_finebin.root',
  'BristolAnalysis/NTupleTools/data/PileUp/PileUp_2011_truth_finebin_64600microbarn.root',
  'BristolAnalysis/NTupleTools/data/PileUp/PileUp_2011_truth_finebin_68000microbarn.root',
  'BristolAnalysis/NTupleTools/data/PileUp/PileUp_2011_truth_finebin_71400microbarn.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Weight3D_Fall11.root',
  'BristolAnalysis/NTupleTools/data/PileUp/Weight3D_Summer11.root',
  'BristolAnalysis/NTupleTools/data/ScaleFactors/MuonEfficiencies_SF_2011_53X_DataMC.root',
  'BristolAnalysis/NTupleTools/data/ScaleFactors/hadronLegEfficiencies_electron.root',
  'BristolAnalysis/NTupleTools/data/ScaleFactors/scaleFactors_electron_id_iso.root',
  'BristolAnalysis/NTupleTools/data/ScaleFactors/scaleFactors_electron_trigger.root'
  ]