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Re: Commonly-used names in the Python standard library

From Marko Rauhamaa <marko@pacujo.net>
Newsgroups comp.lang.python
Subject Re: Commonly-used names in the Python standard library
Date 2014-02-21 14:03 +0200
Organization A noiseless patient Spider
Message-ID <87txbsekq9.fsf@elektro.pacujo.net> (permalink)
References (2 earlier) <5306f95d$0$29985$c3e8da3$5496439d@news.astraweb.com> <87y515dj6z.fsf@elektro.pacujo.net> <mailman.7219.1392970887.18130.python-list@python.org> <87bny069sn.fsf@elektro.pacujo.net> <mailman.7223.1392979785.18130.python-list@python.org>

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Chris Angelico <rosuav@gmail.com>:

> On Fri, Feb 21, 2014 at 9:26 PM, Marko Rauhamaa <marko@pacujo.net> wrote:
>> With #define. Nowhere near as elegant (flexible, hygienic) as in
>> Lisp, but used to create new syntax:
>
> That can't create new syntax, though. All it can do is create a thing
> that looks like a symbol or a function call and plonks a bit of code
> in at that point. That's all. It's more akin to creating a function
> that's able to work with blocks of unexecuted code.

Exactly! Lisp functions and macros (including special forms) are closely
related. The whole scheme (no pun intended) is so attractive because of
the S expression "supersyntax." A "while" macro is syntactically no
different from a "while" function. A macro is a "function" whose
automatic argument evaluation is disabled; the macro "function" gets the
ASTs of the arguments as input. A macro can always simulate a function
but not the other way round.

With the addition of macros, Python would become a (remote) Lisp
dialect. Defining macros would become more complicated because of
Python's more complex "supersyntax."


Marko

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Thread

Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-20 20:39 +1100
  Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 12:22 +0200
    Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-20 21:43 +1100
      Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 13:28 +0200
        Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-20 22:37 +1100
        Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-20 22:47 +1100
          Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 14:09 +0200
            Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-20 23:19 +1100
              Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 14:46 +0200
                Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-21 00:34 +1100
                Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 17:14 +0200
                Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-21 02:48 +1100
                Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-20 18:26 +0200
                Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-21 03:36 +1100
                Re: Commonly-used names in the Python standard library 88888 Dihedral <dihedral88888@gmail.com> - 2014-02-21 12:57 -0800
                Re: Commonly-used names in the Python standard library Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-21 06:49 +0000
            Re: Commonly-used names in the Python standard library Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-21 06:43 +0000
    Re: Commonly-used names in the Python standard library Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-21 06:59 +0000
      Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-21 18:10 +1100
      Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-21 09:21 +0200
        Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-21 19:21 +1100
          Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-21 12:26 +0200
            Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-21 21:49 +1100
              Re: Commonly-used names in the Python standard library Marko Rauhamaa <marko@pacujo.net> - 2014-02-21 14:03 +0200
                Re: Commonly-used names in the Python standard library Ethan Furman <ethan@stoneleaf.us> - 2014-02-21 11:16 -0800
        Re: Commonly-used names in the Python standard library Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-21 09:12 +0000
  Re: Commonly-used names in the Python standard library Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-21 06:51 +0000
    Re: Commonly-used names in the Python standard library Chris Angelico <rosuav@gmail.com> - 2014-02-21 18:02 +1100

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