Untrusted code execution

[Chris Angelico]

On Thu, Apr 7, 2016 at 1:41 AM, Ian Kelly <ian.g.kelly at gmail.com> wrote:
> type might also be a concern since it can be used to assemble
> arbitrary classes.

Sadly, this means denying the ability to interrogate an object for its
type. And no, this won't do:

def safe_type(obj): return type(obj)

because all you need is safe_type(safe_type(1)) and you've just
regained access to the original 'type' type.

ChrisA