All the Statistical Tests You Must Do for a Good Linear Regression

The idea of this post is to show the many statistical tests that are around a Linear Regression. I know that it may sound repetitive ("Yet another post about Linear Regression"), but the information I am about to write about is not widely spread as we may think. Don't worry, I will leave the entire code at the end, where you will be able to see what I have imported for each test. As dataset, I will be using a "toy dataset" from sklearn about wines. For modeling and testing, I will use statsmodels, as it has all of the tests needed in the library.