I consider Python 2.latest to be the same language as Python 1.5.2, which was the first I used. They are upward compatible, aside from very small and presumabl

I consider Python 2.latest to be the same language as Python 1.5.2, which was the first I used. They are upward compatible, aside from very small and presumably unavoidable changes. Python 3 is pretty similar, but nonetheless is very different, thinking of it as the same language will cause you grief. Modern advice is to use the 'python2' and 'python3' commands--never just 'python'.