On Thu, Oct 23, 2014 at 3:28 AM, Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote: > It's also a technique easily extensible to more than two > values: > > '01TX'[n % 4] > > is in my opinion more readable than: > > i = n % 4 > '0' if i == 0 else '1' if i == 1 else 'T' if i == 3 else 'X'
That's true when it's fundamentally arithmetic. But part of that readability difference is the redundancy in the second one. What if it weren't so redundant? 'Negative' if x < 0 else 'Low' if x < 10 else 'Mid' if x < 20 else 'High' You can't easily turn that into a dict lookup, nor indexing. It's either a chained if/elif tree or nested if/else expressions, which come to the same thing. So I'd say all the techniques have their advantages and disadvantages. The most important thing to note is where they differ in semantics, like the short-circuiting of if/else. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
