The INI file format is a simple file format that allows 2-level configuration options. It was extensively used in MS DOS and MS Windows, and it can be used in lots of places as it is very simple.

examples/config.ini

[openweathermap]
api = asdahkaky131

[aws]
api_key = myaws7980
api_code = qkhdkadyday

[digital_ocean]
api = seaworld

This format consists of section names (in square brackets) and in each section key-value pairs separated by and = sign and padded by spaces.