Checking the instance of multiple items at once

Suppose you have a list of items, which are all instances of some class
For example:

>>>result
[<DjangoProject.itemModel.SomeProperty bobject at 0xaeb0bcc>, <DjangoProject.itemModel.SomeProperty at 0xae8a6ac>, <DjangoProject.itemModel.SomeProperty object at 0xaf4a50c>]

Checking if these items can be done with isinstace, how ever doing the
following, will yield an unwanted result:

>>>isinstace(result, DjangoProject.itemModel.SomeProperty)

This is since result is a list. OK so we can do:

>>> check = []
>>> for item in result:
>>>     check.append(isinstace(item, DjangoProject.itemModel.SomeProperty))

But Python is much more expressive, and we can use lambda functions and some
functional programming, to this:

>>> map(lambda x: isinstance(x, DjangoProject.itemModel.SomeProperty), result)
[True, True, True]

And even more cool is this:

>>>all(map(lambda x: isinstance(x, DjangoProject.itemModel.SomeProperty), result))
True