Sublime won't let me make a new build system

[Mattpatt]

photos as google drive links as I am new and can only post 1 photo per post will say when each photo is meant to be. Drive folder

Hi am trying to get sublime working on mac with python 3 but it is running python 2.7 (go to photo 1 in drive folder)

I have tried making a new build system by going: tools, build system, new build system. and then typing this:
{
“cmd”: [“python3”, “-i”, “-u”, “$file”],
“file_regex”: “^[ ]File “(…?)”, line ([0-9]*)”,
“selector”: “source.python”
}

I then did: file, save and saved it as python3: (go to photo 3)

But even after I do that nothing shows up in build systems,

P.s I know I have got python 3.8.6 installed properly as it works in terminal

I have been working on this for ages and can’t figure it out so please someone help me.

Thanks

[deathaxe]

You might want to save the file as Python 3.sublime-build in ST’s User package. The file extension is required to identify build system definitions.

[OdatNurd]

In addition to what @deathaxe mentioned, don’t include -i in your Python arguments. Sublime doesn’t support interactive builds without more setup than you’re doing here, so you’ll end up leaving orphaned Python processes behind every time you run a script.

[Mattpatt]

Thanks It heaps works now