How to disable cling warnings in jupyterLab

[drsh2306]

Hello everybody,
I am using ROOT C++ kernel in JupyterLab.

The output of my code cells is full of cling warnings.
Is there a way to suppress cling warnings in jupyterLab?

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_ROOT Version:6.28/10
_Platform:jupyter notebook
_Compiler:ROOT C++ kernel

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[Danilo]

Hello,

Sorry to hear you see all this warnings. Your post perhaps needs a bit more context:

• What kernel are you using?
• What warnings do you see?
• Do you see them in interactive mode at the prompt?
• Do you see them in a regular notebook?

Cheers,
Danilo

[drsh2306]

Hello, sorry for the late reply, I was on holiday

• I am using 6.28/10 ROOT C++ kernel
• the command I am using to run the notebook is “root --notebook”
• Example of cell code:

TCanvas c("Canvas 1", "Canvas", 0, 0, 1000,500);
c.divide(2,2);
for (int j=0; j<2; ++j)
{
 TH2F* pPlot1 = obj1.GenerateSinglePlot();
 TH2F* pPlot2 = obj2.GenerateSinglePlot();

 c.cd(2*j+1);
 pPlot1->Draw("COLZ");
 c.cd(2*j+2);
 pPlot2->Draw("COLZ");
}
c.Draw()

the output is then spammed by these messages

Warning in <TFile::Append>: Replacing existing TH1: obj1 plot1 (Potential memory leak).
Warning in <TFile::Append>: Replacing existing TH1: obj2 plot1 (Potential memory leak).
Warning in <TFile::Append>: Replacing existing TH1: obj1 plot2 (Potential memory leak).
Warning in <TFile::Append>: Replacing existing TH1: obj2 plot2 (Potential memory leak).

• How to disable warnings in output?