def initPDFWeights(self):
from ROOT import PdfWeightProducerTool
self.pdfWeightInit = True
self.pdfWeightTool = PdfWeightProducerTool()
for pdf in self.cfg_ana.PDFWeights:
self.pdfWeightTool.addPdfSet(pdf + ".LHgrid")
self.pdfWeightTool.beginJob()
