> No, the list comprehension lets you write an expression directly avoiding a > function call, and it also allows you to add in a condition which can be > used to filer the sequence. Your proposal adds nothing.
It does. Consider this: whatever = [x for x in xrange(1000000000) while x < 10] That would run only in a splitsecond of what the whole listcomp would. Yet I still fail to see that this is a really useful use-case. takewhile is easily abstracted away as map and reduce and filter are using lambda - which I'm a modest supporter of. But functions that are monotonic such that the takewhile really offers a advantage over the much more general listcomp + if are IMHO way to seldom to justify a new syntax. The overall complexity is still O(n). Regards, Diez -- http://mail.python.org/mailman/listinfo/python-list
