To loop over tree entries in a python script I use
tr = file.Get(‘treename’)
for ev in tr:
where LeptonPt is the name of the Branch(“LeptonPt”,…)
python object names should start with a letter. Question: how do I read the branch that is called ‘1stjetpt’?
There is no possibility to change the name of the branch.
Unfortunately, since the branch name starts with a number, it breaks the automatic tooling.
However, you can probably still access it if you use an explicit assignment with a call to GetBranch. That is:
firstjetpt = tr.GetBranch("1stjetpt")
You may also be able to rename the branch on the fly by using TDataFrame’s Define and/or Snapshot actions.
Thank you, anadio and wlaw! I went for GetBranch()
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