The three-course decision
You do not need the “best” Python course in the abstract. You need the one that matches how certain you are about learning Python and how much time you want to commit right now.
Fastest start: Practical Python Programming for Beginners
Alison currently lists this beginner course at about 1.5-3 hours. Choose it when you mainly want to test the experience of coding and get a first program running without committing to a long path.
Best for breadth: Python for Beginners
This beginner course is listed at about 4-5 hours and publishes outcomes that span programming principles, procedural and object-oriented ideas, files, APIs, modules and packages. Choose it if you want to see a wider map of Python early.
Best for depth: Diploma in Python Fundamentals
This course is listed as intermediate and roughly 10-15 hours. Its published outcomes cover core data types, syntax and imports, inheritance, sets and tuples. Choose it when you already know you want a longer foundation.
A simple sequence if you are unsure
Start with the 1.5-3 hour practical course. If Python still feels useful, move to the longer fundamentals path. If you prefer a broader single introduction, take Python for Beginners first. You do not need to complete every overlapping beginner course.
What matters more than the course choice
Write code outside the lessons. A learner who spends three hours on a short course and ten hours building and debugging will usually develop more usable skill than someone who passively completes multiple courses. Use the course to structure practice, not replace it.