[Python-Dev] type.__subclasses__() doesn't work

[Hrvoje Niksic]

On 10/09/2013 02:22 PM, Peter Otten wrote:
>> py> type.__subclasses__(type)
>> [<class 'abc.ABCMeta'>, <class 'string._TemplateMetaclass'>]
>
> The underlying problem seems to be that there is no helper function to
> bypass the instance attribute.

Note that the problem is specific to the "type" type, which is its own 
metatype. With other types that get __subclasses__ from type, is no 
problem with just calling __subclasses__():

 >>> int.__subclasses__()
[<type 'bool'>]