It’s said that “Hello World!” from programming is a sanity test, to see if, when faced with a programming language you have never used before, you have understood the basics and you are able to write the most minimally viable code.

My madness to be tested, that of Data Analysis, began out of necessity at the company where I currently work. I was living peacefully as the typical Excel Controller (in LibreOffice), making up for those reports that the ERP did not have. But as time went on and in a short period of time, the company’s needs grew, and a simple spreadsheet with formulas was not enough, both in terms of features and speed. The need for automation kept growing. Today, we cannot live without Pandas (the Python library, not the bears, although we can’t live without them either) and such. But that’s a story for another day.