its not always a list.  the underlying storage could be a Set, or a
dict.

there is also a ticket to enhance the typing behavior in this regard,
its #213.  although even if we make subtypes that are specific to a
collection type, actually subclassing "list" is somewhat inconvenient
since its a proxying object (like we dont actually need the overhead
of creating a native "list" instead of just "object").  it would also
have to still contain inheritance to InstrumentedCollection (i.e.
multiply inherit).

might you use duck-typing instead ?  what happens if your code comes
across a UserList (also not a list) ?

On Mar 8, 8:37 pm, "kris" <[EMAIL PROTECTED]> wrote:
> sqlalchemy.orm.attributes.InstrumentedList
>
> I was wondering why instrumentedList is derived from
> 'object' instead of 'list'?
>
> I working with some introspection code and it fails
> on attributes of type InstrumentedList because of this.
>
> Thanks,
> kris


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