example_evgenanalysis.py

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# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
 
include("EvgenProdTools/StdAnalysisSetup.py")
 
class MyAna(EvgenAnalysisAlg):
 
    def __init__(self, name="MyAna"):
        super(MyAna, self).__init__(name=name)
 
    def execute(self):
        evtcoll = self.evtStore[self.McEventKey]
        evt = evtcoll[0]
        #evt.weights().push_back(3.142)
        print evt.particles_size(), ":", [w for w in evt.weights()]
        return StatusCode.Success
 
 
svcMgr.EventSelector.InputCollections = ["mc.evnt.pool.root"]
topSeq += MyAna()