New submission from Stubz: The last line has a typo ... Dict.fromkeys -> dict.fromkeys
I am a newbie, but that was just a pain in the ass ... Worked my way thru this How to and spent an hour+ trying to sort a circular argument error... Was this intentional ¿ In as much as it was a pain in the ass, I think I got the concept sorted ... https://docs.python.org/3.5/howto/descriptor.html Static Methods and Class Methods This behavior is useful whenever the function only needs to have a class reference and does not care about any underlying data. One use for classmethods is to create alternate class constructors. In Python 2.3, the classmethod dict.fromkeys() creates a new dictionary from a list of keys. The pure Python equivalent is: class Dict(object): . . . def fromkeys(klass, iterable, value=None): "Emulate dict_fromkeys() in Objects/dictobject.c" d = klass() for key in iterable: d[key] = value return d fromkeys = classmethod(fromkeys) Now a new dictionary of unique keys can be constructed like this: >>> Dict.fromkeys('abracadabra') ---------- assignee: docs@python components: Documentation messages: 262223 nosy: docs@python, stubzpub priority: normal severity: normal status: open title: Descriptor HowTo Guide - Typo type: behavior versions: Python 3.5 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26613> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
