On 12/10/2017 5:00 PM, Raymond Hettinger wrote:
On Dec 10, 2017, at 1:37 PM, Eric V. Smith <e...@trueblade.com> wrote:
On 12/10/2017 4:29 PM, Ivan Levkivskyi wrote:
On 10 December 2017 at 22:24, Raymond Hettinger
<raymond.hettin...@gmail.com<mailto:raymond.hettin...@gmail.com>> wrote:
Without typing (only the first currently works):
Point = namedtuple('Point', ['x', 'y', 'z']) #
underlying store is a tuple
Point = make_dataclass('Point', ['x', 'y', 'z']) #
underlying store is an instance dict
Hm, I think this is a bug in implementation. The second form should also work.
Agreed.
I've checked this under bpo-32278.
I have a bunch of pending changes for dataclasses. I'll add this.
Eric.
Thanks Eric and Ivan. You're both very responsive. I appreciate the enormous
efforts you're putting in to getting this right.
I suggest two other fix-ups:
1) Let make_dataclass() pass through keyword arguments to _process_class(), so
that this will work:
Point = make_dataclass('Point', ['x', 'y', 'z'], order=True)
And I've checked this in under bpo-32279.
2) Change the default value for "hash" from "None" to "False". This might take
a little effort because there is currently an oddity where setting hash=False causes it to be hashable. I'm
pretty sure this wasn't intended ;-)
I haven't looked at this yet.
Eric.
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