Erroneous Knowledge

I have been doing #100daysofcode with Python. I use pybites and realpython.com for inspiration. I do one code puzzle off of pybites and I research language internals in the python documentation side by side with realpython.com. realpython.com has an AI code mentor which is pretty neat. It is in beta stage but it proves highly useful for the rudiments I struggle with at times. Recently I was confused on a use of lambda, or an anonymous function, in the key parameter of sorted(). There was a trick with sorting numbers and using .lower() in the key so you could sort words case-insensitive. The AI Code Mentor made short order of this with a great explanation. I've been considering training for the Cisco Certified CCNA in the Fall; I want to take an online course on Windows command line as well. I have been slacking off with studying Machine Learning in Python. The math is a little above my head and it is quite intimidating but I did find a resource called fastAI. It seems to be a wrapp...