[Python-Dev] Impact of Namedtuple on startup time (original) (raw)
Alexander Belopolsky alexander.belopolsky at gmail.com
Mon Jul 17 19:48:05 EDT 2017
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On Mon, Jul 17, 2017 at 6:27 PM, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
Maybe a metaclass could be used to make something like this possible: class Foo(NamedTuple, fields = 'x,y,z'): ... If you think of it, collection.namedtuple is a metaclass. A simple wrapper will make it usable as such:
import collections
def namedtuple(name, bases, attrs, fields=()): # Override init_subclass for Python 3.6 return collections.namedtuple(name, fields)
class Foo(metaclass=namedtuple, fields='x,y'): pass
print(Foo(1, 2)) # ---> Foo(x=1, y=2) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20170717/a08bf4e1/attachment.html>
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