Re: Not possible to hide local variables

From	Marko Rauhamaa <marko@pacujo.net>
Newsgroups	comp.lang.python
Subject	Re: Not possible to hide local variables
Date	2015-04-30 08:10 +0300
Organization	A noiseless patient Spider
Message-ID	<87383inqut.fsf@elektro.pacujo.net> (permalink)
References	<874mo0zoz2.fsf@Equus.decebal.nl> <553f46d2$0$11124$c3e8da3@news.astraweb.com> <87h9rzxx5h.fsf@Equus.decebal.nl> <5541a9fc$0$13014$c3e8da3$5496439d@news.astraweb.com>

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Steven D'Aprano <steve+comp.lang.python@pearwood.info>:

> If you have a Java background, you might find this useful:
>
> http://dirtsimple.org/2004/12/python-is-not-java.html
>
> http://dirtsimple.org/2004/12/java-is-not-python-either.html

Unfortunately, I didn't find those articles all that insightful.

The one big difference between Java and Python is interfaces vs
ducktyping. In Java, you do everything through formal interfaces. In
Python, you do nothing through formal interfaces.

I occasionally see a Java class that doesn't implement an interface, and
there are abstract Python base classes that emulate interfaces. However,
I think both practices are nonidiomatic and should be avoided in their
respective domains.

Anonymous nested inner classes are syntactically cumbersome. However,
conceptually they are a fabulous device. They were popularized in Java
and I use them quite frequently in Python.


Marko

Thread

Not possible to hide local variables Cecil Westerhof <Cecil@decebal.nl> - 2015-04-28 09:33 +0200
  Re: Not possible to hide local variables Ethan Furman <ethan@stoneleaf.us> - 2015-04-28 00:56 -0700
    Re: Not possible to hide local variables Cecil Westerhof <Cecil@decebal.nl> - 2015-04-29 08:16 +0200
      Re: Not possible to hide local variables Michael Torrie <torriem@gmail.com> - 2015-04-29 21:10 -0600
  Re: Not possible to hide local variables Chris Angelico <rosuav@gmail.com> - 2015-04-28 18:06 +1000
    Re: Not possible to hide local variables Cecil Westerhof <Cecil@decebal.nl> - 2015-04-29 08:25 +0200
      Re: Not possible to hide local variables Chris Angelico <rosuav@gmail.com> - 2015-04-29 17:36 +1000
  Re: Not possible to hide local variables Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-04-28 18:37 +1000
    Re: Not possible to hide local variables Chris Angelico <rosuav@gmail.com> - 2015-04-28 18:44 +1000
    Re: Not possible to hide local variables Marko Rauhamaa <marko@pacujo.net> - 2015-04-28 12:20 +0300
    Re: Not possible to hide local variables Cecil Westerhof <Cecil@decebal.nl> - 2015-04-29 08:32 +0200
      Re: Not possible to hide local variables Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-04-30 14:05 +1000
        Re: Not possible to hide local variables Marko Rauhamaa <marko@pacujo.net> - 2015-04-30 08:10 +0300
          Re: Not possible to hide local variables Chris Angelico <rosuav@gmail.com> - 2015-04-30 16:01 +1000
  Re: Not possible to hide local variables Cecil Westerhof <Cecil@decebal.nl> - 2015-04-29 08:14 +0200
  Re: Not possible to hide local variables Grant Edwards <invalid@invalid.invalid> - 2015-04-29 14:16 +0000
    Re: Not possible to hide local variables Dave Angel <davea@davea.name> - 2015-04-29 22:31 -0400
    Re: Not possible to hide local variables Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-04-30 08:53 -0400
      Re: Not possible to hide local variables Cecil Westerhof <Cecil@decebal.nl> - 2015-04-30 16:50 +0200

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