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[
	{
		"class": "sidebar_label",
		"color": [250, 250, 250],
		//"shadow_color": [0, 0, 0],
		//"shadow_offset": [0, -1],
		"font.size": 15.5,
		//"font.italic": true,
		"font.bold": false,
		"font.face": "San Francisco Display",

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make sure your system is upgraded by typing these comments

sudo apt update
sudo apt upgrade

Next, install the default GCC toolchain with:

sudo apt install build-essential

Next, we need to install a few prerequisites for building Python:

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How to install virtualenv:

Install pip first

sudo apt-get install python3-pip

Then install virtualenv using pip3

sudo pip3 install virtualenv