Tutorial
[+]Console
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Open a graphical window as a ROOT file manager
$ root -l
root [0] TBrowser QWE
Jupyter kernel
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To load some file.root
In [1]: auto file=new TFile("file.root")
In[2]: file->ls();
.....
KEY: TTree Delphes;1 Analysis tree
In [3]: auto objXS=(TTree*)file->Get("Delphes");
In [4]: objXS-><TAB><TAB>Pyroot
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