Trouble with pyroot about drawing a function

Newbie
,
1

ROOT Version: 6.26
Platform: MacOS Catalina

I am newbie in HEP and I was trying to use root with python so, when I use python prompt like below I get the graph like this

Screen Shot 2022-10-19 at 4.55.31 AM
Screen Shot 2022-10-19 at 4.55.31 AM1304×1448 188 KB

Nonetheless, I am not able to get the same graph when I try to execute the script,

Screen Shot 2022-10-19 at 4.47.23 AM
Screen Shot 2022-10-19 at 4.47.23 AM1152×588 52.2 KB

I really appreciate it for any help

2

python3 -i ...

3

Then graph don’t show up either and I am getting this:

Screen Shot 2022-10-19 at 3.40.39 PM
Screen Shot 2022-10-19 at 3.40.39 PM1444×1276 117 KB

4

After the “Draw”, try to add: ROOT.gPad.Modified(); ROOT.gPad.Update()

5

Thank you it worked but is there any way to do without “python3 -i …”