On 8/2/2014 8:59 PM, Ian Kelly wrote:
On Sat, Aug 2, 2014 at 2:46 PM, Mark Summerfield <l...@qtrac.plus.com> wrote:
On Saturday, 2 August 2014 20:58:59 UTC+1, Ben Finney wrote:
Steven D'Aprano writes:
If you need instances which carry state, then object is the wrong
class.
Fair enough.
Right. The 'types' module provides a SimpleNamespace class for the
common "bag of attributes" use case::
>>> import types
>>> foo = types.SimpleNamespace()
>>> foo.x = 3
>>> foo
namespace(x=3)
This is too much for children (& beginners).
But perhaps what I should be asking for is for a new built-in that does what
types.SimpleNamespace() does, so that without any import you can write, say,
foo = namespace(a=1, b=2)
# or
bar = namespace()
bar.a = 1
where under the hood namespace has the same behavior as types.SimpleNamespace().
Naturally, I understand that adding a new name is a big deal and may be too
much to ask for beginners.
from types import SimpleNamespace as namespace
Just have them put that at the top of each file, and tell them not to
worry about what it does.
In fact, for the original usecase, put it in a 'template file' that also
includes a turtle import. For one of my projects, I have @template with
several lines of boilerplate that I use for new files.
--
Terry Jan Reedy
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