Common LISP-style closures with Python
Chris Rebert
clp2 at rebertia.com
Fri Feb 3 21:47:20 EST 2012
On Fri, Feb 3, 2012 at 4:27 PM, Antti J Ylikoski <antti.ylikoski at tkk.fi> wrote:
>
> In Python textbooks that I have read, it is usually not mentioned that
> we can very easily program Common LISP-style closures with Python. It
> is done as follows:
>
> -------------------------------------
>
> # Make a Common LISP-like closure with Python.
> #
> # Antti J Ylikoski 02-03-2012.
>
> def f1():
> n = 0
> def f2():
> nonlocal n
> n += 1
> return n
> return f2
<snip>
> i. e. we can have several functions with private local states which
> are kept between function calls, in other words we can have Common
> LISP-like closures.
Out of curiosity, what would be non-Common-Lisp-style closures?
Cheers,
Chris
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