In respect to map(func, seq) versus [func(i) for i in seq], for pre-existing func, 'OP' wrote
>>>>The map form, in this case, parses instantly in my brain, while the >>>>listcomp >>>>certainly takes a few cycles. And note that I'm not talking about the >>>>typing >>>>conciseness, but about the effort for my brain. But maybe I'm just >>>>wired >>>>funny :) >> Steven Bethard wrote: >>>Well, different at least. I find the map one harder to parse mentally. [and] > [1] In my mind, the program flow is spelled out explicitly in the list > comprehension and only implicitly in the map application. Thus the list > comprehension is clearer to me. For pre-existing func, I slightly prefer the map form because the sequential program flow is *not* spelled out. So I can more easily see the sequence items mapped in parallel. On the other hand, I probably prefer [i-expression for i in seq] to map(lambda i: i-expression, seq) because I find the (unnecessary) mental construction of a function object to be a compensating burden. I can easily imagine that others will find themselves more comfortably on one side or the other of the mental fence I find myself sitting on ;-). Terry J. Reedy -- http://mail.python.org/mailman/listinfo/python-list
