"Getting up to Speed with Python" is what you are after. "Up to speed" implies that the reader is already "there", hence, the book will be targeting readers that already have considerable knowledge and skill with Python. Clearly, your statement, "I would like to convey... that this is a fast way... to learn the basic concepts...", you are targeting those with minimal skills and experience. Therefore, they will be "getting up to speed" as they go through the book, with the implication that upon completion of the book, they will be "at speed".
