Message314716
This is not a bug, but a misunderstanding:
* First, ABCMeta doesn't have `__prepare__`, it is just `type.__prepare__`
* Second, the third argument to `types.new_class` is called `kwds` for a reason. It is not a namespace like in `type` but the set of keywords in the equivalent class definition. For example:
types.new_class('Test', (A, B), {'metaclass': Meta, 'foo': 42})
id equivalent to
class Test(A, B, metaclass=Meta, foo=42):
pass
If you want to populate the namespace, then you should use the fourth argument `exec_body` which should be a callable that takes newly created dictionary and populates it with items. For your case it should be:
C = new_class("C", (MyABC,), {}, exec_body=lambda ns: ns.update(namespace))
If you want to clarify the corresponding docstring, then please open a PR. Otherwise you can close the issue. |
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Date |
User |
Action |
Args |
2018-03-30 21:02:10 | levkivskyi | set | recipients:
+ levkivskyi, Ricyteach |
2018-03-30 21:02:10 | levkivskyi | set | messageid: <1522443730.54.0.467229070634.issue33190@psf.upfronthosting.co.za> |
2018-03-30 21:02:10 | levkivskyi | link | issue33190 messages |
2018-03-30 21:02:10 | levkivskyi | create | |
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