Pulser file

gistfile1.py

import ROOT

class MGMPulserFile:
    _mydict = None
    @classmethod
    def get_event(cls, timestamp ):
        if not cls._mydict: cls.setup_file() 
        return cls._mydict[ timestamp ]

    @classmethod
    def setup_file(cls):
        if cls._mydict: return
        print "Initializing pulser file"
        myfile = ROOT.TFile("pulser_in_onefile.root")
        thetree = myfile.Get("soudan_wf_analysis")
        cls._mydict = dict([( an_event.timestamp, 
          ( an_event.pulser_chunk_one, an_event.pulser_chunk_two ))  
          for an_event in thetree])

print MGMPulserFile.get_event(3342897306437)
print MGMPulserFile.get_event(3342816988609)