The difference between Python minor versions (e.g. 3.4 to 3.6) is tiny compared to the difference between Perl 5 and 6.
From what I've seen, the difference between Python 2.x and 3.x is tiny compared to the Perl 5/6 change.
From what I've seen, the difference between Python 2.x and 3.x is tiny compared to the Perl 5/6 change.
The difference between Perl 5 and Perl 6 is probably about 10x the difference between Perl 5.10 and 5.26
I like to explain it this way:
Perl 4 is to C
as Perl 5 is to C++
as Perl 6 is to Haskell/Smalltalk/C#/Swift/Julia…
So I might agree actually on the "bigger", but the "noticeability" does have a lot to do with the general feeling.
(to be clear, I agree with all of your comment)
From what I know about Python 2/3, it's that you can write maybe 90% on average/in general of your code the same way without much thought about the differences. However, if you do wish to adopt the new features, there's plenty to keep you busy writing scripts for at least a few months, maybe even a year.