Is there a way to change the closure of a python function?

[Chris Angelico]

On Wed, Sep 28, 2016 at 7:19 AM, Terry Reedy <tjreedy at udel.edu> wrote:
> The value of the cell variable is writable from within the body of the
> closure function if declared nonlocal, but not otherwise, and not from
> without.  The latter may be what Peng meant by 'change' and the blogger by
> 'read-only'.
>

Not from entirely without, but it's possible for two functions to
share a cell. I don't know the mechanics of how nonlocal assignment
works, but ultimately, it's updating the cell that both closures see,
so it's going to affect the other function too.

ChrisA