[issue40304] Classes created using type() don't need to explicitly inherit from object

New submission from Борис Верховский boris.verk@gmail.com:
As far as I can tell, passing `(object,)` and `()` as the `bases` parameter to the 3-argument version of type() produces the same result, because classes inherit from `object` in Python 3:
type('X', (object,), dict(a=1)).__bases__
(<class 'object'>,)
type('X', (), dict(a=1)).__bases__
(<class 'object'>,)
I just want to make sure I'm not missing something and update the documentation of `type()` to reflect that.
---------- assignee: docs@python components: Documentation messages: 366613 nosy: boris, docs@python priority: normal pull_requests: 18902 severity: normal status: open title: Classes created using type() don't need to explicitly inherit from object type: enhancement versions: Python 3.9
_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue40304 _______________________________________

Terry J. Reedy tjreedy@udel.edu added the comment:
New changeset 644d52818a6391535e5838fd57d58ffcb1163056 by Борис Верховский in branch 'master': bpo-40304: Correct type(name, bases, dict) doc (GH-19553) https://github.com/python/cpython/commit/644d52818a6391535e5838fd57d58ffcb11...
---------- nosy: +terry.reedy
_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue40304 _______________________________________

Change by miss-islington mariatta.wijaya+miss-islington@gmail.com:
---------- keywords: +patch nosy: +miss-islington nosy_count: 3.0 -> 4.0 pull_requests: +23118 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24295
_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue40304 _______________________________________

Change by miss-islington mariatta.wijaya+miss-islington@gmail.com:
---------- pull_requests: +23119 pull_request: https://github.com/python/cpython/pull/24296
_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue40304 _______________________________________

miss-islington mariatta.wijaya+miss-islington@gmail.com added the comment:
New changeset 34f3f4ac70e3ba2e603ba7792addf973c94f90cb by Miss Islington (bot) in branch '3.8': bpo-40304: Correct type(name, bases, dict) doc (GH-19553) https://github.com/python/cpython/commit/34f3f4ac70e3ba2e603ba7792addf973c94...
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_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue40304 _______________________________________

miss-islington mariatta.wijaya+miss-islington@gmail.com added the comment:
New changeset 98e1f5c778b9719f6338a3247da95402192bad18 by Miss Islington (bot) in branch '3.9': bpo-40304: Correct type(name, bases, dict) doc (GH-19553) https://github.com/python/cpython/commit/98e1f5c778b9719f6338a3247da95402192...
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_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue40304 _______________________________________

Change by Terry J. Reedy tjreedy@udel.edu:
---------- resolution: -> fixed stage: patch review -> resolved status: open -> closed
_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue40304 _______________________________________
participants (3)
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miss-islington
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Terry J. Reedy
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Борис Верховский