Closures in python

[Anton Vredegoor]

Hallvard B Furuseth <h.b.furuseth(nospam)@usit.uio(nospam).no> wrote:

>'closure' is a much-abused word.
>This is a closure over foo's x variable:

How about namespaces?

>def foo():
>  x = 3
>  def bar():
>    x += 1
>    return x
>  return bar
>
>f = foo()
>print f()  # print 4
>g = foo()
>print f()  # print 5
>print g()  # print 4
>
>...or it would be, if it worked.

This works:

def foo():
    class ns:pass
    ns.x = 3
    def bar():
        ns.x += 1
        return ns.x
    return bar

Anton