Ian Kelly wrote: > On Tue, Jan 12, 2016 at 10:12 AM, Terry Reedy <tjre...@udel.edu> wrote: >> Using the values views at intended (as an iterable): >> >>>>> dv = d.values() >>>>> next(iter(dv)) >> 1 > > Good coding practice also dictates that whenever next is called, the > potential StopIteration exception must be caught unless it is clearly > intended to be propagated up to some generator.
Even then you should be prepared for https://docs.python.org/dev/whatsnew/3.5.html#pep-479-change-stopiteration-handling-inside-generators > So more fully, this > should be something like: > > dv = iter(d.values()) > try: > next(dv) > except StopIteration: > raise IndexError("d is empty") > > At which point it may be desirable to extract that into a utility > function. -- https://mail.python.org/mailman/listinfo/python-list
