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Date: Fri, 3 Feb 2012 18:47:20 -0800
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Subject: Re: Common LISP-style closures with Python
From: Chris Rebert <clp2@rebertia.com>
To: Antti J Ylikoski <antti.ylikoski@tkk.fi>
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On Fri, Feb 3, 2012 at 4:27 PM, Antti J Ylikoski <antti.ylikoski@tkk.fi> wr=
ote:
>
> In Python textbooks that I have read, it is usually not mentioned that
> we can very easily program Common LISP-style closures with Python. =C2=A0=
It
> is done as follows:
>
> -------------------------------------
>
> # Make a Common LISP-like closure with Python.
> #
> # Antti J Ylikoski 02-03-2012.
>
> def f1():
> =C2=A0 =C2=A0n =3D 0
> =C2=A0 =C2=A0def f2():
> =C2=A0 =C2=A0 =C2=A0 =C2=A0nonlocal n
> =C2=A0 =C2=A0 =C2=A0 =C2=A0n +=3D 1
> =C2=A0 =C2=A0 =C2=A0 =C2=A0return n
> =C2=A0 =C2=A0return 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