On Sunday, May 31, 2015 at 7:34:20 AM UTC-7, Eddilbert Macharia wrote:
> Hello All ,
>
> I'm wrecking my head trying to understand. where the class object comes into
> play .
>
> Is it only meant to act as base class and does it mean there is an actual
> class called object in python which all the objects created using the class
> type inherit ?
>
> i'm assuming the metaclass if simplified would look something like this :
>
> type('dict', (object,),{})
>
> And when we use the class type as a metaclass are we using the instance
> version of the class type or are we actually using the type class itself ?
>
> Also when we say everything is an object in python, are we referring to the
> fact that everything is an instance of the class type or does it have to with
> the object class inherited ?
>
> As can be attested by using type() function as below :
>
> >>> type(int)
> <class 'type'>
> >>> type(list)
> <class 'type'>
> >>> type(dict)
> <class 'type'>
> >>> type(type)
> <class 'type'>
> >>> type(object)
> <class 'type'>
>
> From my understanding this means all of this are instances of the class type.
> which means the class type was used to create this instances.
>
> Now if i look at the __bases__ of all this objects i get :
>
> >>> type.__base__
> <class 'object'>
> >>> type.__bases__
> (<class 'object'>,)
> >>> dict.__bases__
> (<class 'object'>,)
> >>> list.__bases__
> (<class 'object'>,)
> >>> int.__bases__
> (<class 'object'>,)
> >>> object.__bases__
> ()
>
> This tells me that all of this objects inherit from the class object which
> has nothing to do with them being instances.
It may be helpful to try "dir(object)" to see what methods object provides to
all those other classes.
Best regards, Vern
--
https://mail.python.org/mailman/listinfo/python-list
