Python

Lists

data structure for data that should be changed mutable ordered

Tuples

data structure for data that should not be changed immutable ordered

Dicts

key-value pairs that have fast lookup mutable unordered

Sets

collection of unique items that excels at testing membership mutable unordered

Setting up venv

Create project folder, enter it and activate venv

mkdir my_project

cd my_project

python3 -m venv venv

source venv/bin/activate

Install relevant packages | pip install numpy Save requirements.txt | pip freeze > requirements.txt

Install from requirements.txt | pip install -r requirements.txt

Activating/Deactivating venv

Activating | source venv/bin/activate

Deactivating | deactivate

Unittest

Running only a single test python -m unittest <module_name>.py