Hi :)

Why use python 2 syntax in examples today? Since Python 2 has been discontinued in January 1, 2020.

Examples:

• In many examples print "string" syntax is used.

• In "Create a length-N list of lists" is used:

four_lists = [[] for __ in xrange(4)]

instead:

four_lists = [[] for __ in range(4)]

Has a note stating the new syntax:

Note: Use range() instead of xrange() in Python 3.

But is this really necessary today? Isn't it better to update everything to Python 3 syntax?