import ROOT
import glob

for root_file in glob.glob("/data/userdata/jguiang/temp/*.root"):
    # Load file
    tfile = ROOT.TFile(root_file)
    ttree = tfile.Get("Events")
    tbranch = ttree.GetBranch("nLHEReweightingWeight")
    # Loop over all entries in the tree
    counts = set([entry.nLHEReweightingWeight for entry in ttree])
    if len(counts) > 1 or len(counts) == 0 or counts != set([120]):
        print("Something's weird here: ")
        print(root_file)
        print(counts)