> The directives in Perl code tell the Perl interpreter, even the very latest one and it's the only one installed on your machine, how it should intepret loadin

> The directives in Perl code tell the Perl interpreter, even the very latest one and it's the only one installed on your machine, how it should intepret loading the code > That's a much better attitude than the Python developers. You do realize that this comes at a cost, right? A lot of decisions in Python3 (and further) are based on the desire to keep the interpreter simple. Python Core Team doesn't have unlimited resources, and even if they did, the cost of complexity grows non-linearly. py2 -> py3 transition did not go as planned, but that doesn't mean that following Perl route would have had better outcomes.