Bo Morris wrote: > Thank you for your assistance. Based on your direction, I figured it out. > > *This... * > > def add(number): > print 1 + int(number) > > x = ['2', '4', '6', '8', '10', '12'] > > [add(item) for item in x] > > *Is the same as... * > > > def add(number): > print 1 + int(number) > > x = ['2', '4', '6', '8', '10', '12'] > > map(add, x) > > They both yield the same results. Is there a benefit to using one way over > the other? In larger computations, does one way calculate faster or is it > merely a preference? Again, thank you.
For built-in functions map(f, items) is a bit faster. List-comps are more flexible; you can inline the function >>> [int(s) + 1 for s in x] [3, 5, 7, 9, 11, 13] or add a filter: >>> [int(s) + 1 for s in x if set("12") & set(s)] [3, 11, 13] _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor