In <mailman.8818.1396461529.18130.python-l...@python.org> Roy Smith <r...@panix.com> writes:
> I have a big hairy data structure which is a tree of nested dicts. I = > have a sequence of strings which represents a path through the tree. = > Different leaves in the tree will be at different depths (which range = > from 1 to about 4 or 5 at most). I want to get the value stored at that = > path. Thus, if > keys =3D ['foo', 'bar', 'baz'] > I want to retrieve tree['foo']['bar']['baz']. > Is there some idiomatic, non-cryptic way to write that as a one-liner? > I'm using Python 2.7. How about three lines? subtree = tree for key in keys: subtree = subtree.get(key) -- John Gordon Imagine what it must be like for a real medical doctor to gor...@panix.com watch 'House', or a real serial killer to watch 'Dexter'. -- https://mail.python.org/mailman/listinfo/python-list