On Sun, Aug 11, 2013 at 6:58 PM, Armin Ronacher <armin.ronac...@active-4.com> wrote: > Hi, > > > On 11/08/2013 23:47, Daniel Micay wrote: >> >> Python does not make the guarantee, and the functions like `zip` there >> will continue calling the underlying iterators. > > That's incorrect. Python's definition of the iterator protocol is that an > iterator not continue raising StopIteration is in violation of the protocol. > > > Regards, > Armin
If the underlying iterators continue to raise StopIteration, zip will continue to do so. It will *not* stop calling __next__ on them, and will happily start yielding elements again if they all do. The other itertools adaptors are the same way. Perhaps it's a violation of the protocol to stop raising StopIteration, but zip will continue to cause side effects like I/O. _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
