Martin Panter added the comment: It is at least an omission from the documentation. The glossary <https://docs.python.org/dev/glossary.html#term-mapping> refers to the Mapping ABC. From Christian’s point of view, the quack of an iterator with just a “keys” attribute sounds more like an iterator than a mapping.
I think the documentation for the dict() constructor should say how to ensure the iterable and mapping modes are triggered. Perhaps dict.update() should also, because it appears to also treat non-dict() “mappings” differently to plain iterators. ---------- nosy: +vadmium _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24659> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com