Jacobian made a few bogus statements. One is about imports. In fact, you don't need to import anything to use Python globals or primitive data structures. Why? because those primitives structures are so useful and often used that they are automatically imported for use.
This is conceptually similar about the Web2py primitives. These primitives are so often used that there are automatically imported. Another bogus statement is about web2py is harder to learn. Now. Jacob is a very smart guy with proven records. But he doesn't have a record of being a teacher, one that Massimo has. I think it is this experience that Massimo understands better what it is easy or difficult for beginners to learn. Personally, I have two Django books in my bookshelf, but I eventually gave up Django to look for other options that did waste my time. A little more objective, if people pay attention to the tweets, there are lots of beginners who love web2py and find it so easy to learn. The most outrageous thing that comes out of Jacob and some other folks is this mentality that "Python experts will look down to you if you use web2py" or "sure, beginners love web2py because they are beginners". These guys seem to have no clue about the increasingly pervasive nature of computing in society today. There are many very smart and intelligent "beginners" who know little about web frameworks or even Python. They simply look for tools to develop their ideas. In fact, you see many scientists and researchers who write programs and develop webapps (in particular). My thinking is in the short future many more (smart) people who will be writing programs, naturally. They will look for tools that in the easiest manner facilitate the creation of what they want to do. It is very unfortunately that these young and smart guys are trapped in their narrow world. So much group-think. So narrow-minded. My advice again is simply to ignore them. As I said in a previous post, as long as you mention Flask, Django in the same breath as web2py, it's going to be a negative experience.