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Re: question about input() and/or raw_input()

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On Sunday, January 19, 2014 9:51:36 AM UTC+5:30, Chris Angelico wrote:
> On Sun, Jan 19, 2014 at 3:15 PM, Rustom Mody  wrote:
> > On Sunday, January 19, 2014 12:00:20 AM UTC+5:30, Roy Smith wrote:
> >> Pardon me for being cynical, but in the entire history of the universe,
> >> has anybody ever used input()/raw_input() for anything other than a
> >> homework problem?
> > Similar 'cynicism' regarding print would be salutary for producing better programmers
> > [If youve taught programming and had to deal with code strewn with prints...]

> Why, exactly? How ought a program to produce filterable output?

Because these two pieces of code

>>> def foo(x): print x+1

>>> def bar(x): return x+1

look identical (to a beginner at least)

>>> foo(3)
4
>>> bar(3)
4
>>> 

And so if they see prints used cavalierly for demo purposes, they think the
prints are also ok for production.

As a professional programmer, you would of course understand
- 'normal' code that does some processing and then some output should not 
have prints in the processing
- web-serving (type of) code that has little other than heavy-duty printing
should probably use a template engine of some sort

In any case prints all over is a code-smell
exacerbated by the way that manuals/examples need to be written

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question about input() and/or raw_input() Roy Smith <roy@panix.com> - 2014-01-18 13:30 -0500
  Re: question about input() and/or raw_input() Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-01-18 18:41 +0000
  Re: question about input() and/or raw_input() Emile van Sebille <emile@fenx.com> - 2014-01-18 10:49 -0800
  Re: question about input() and/or raw_input() Peter Otten <__peter__@web.de> - 2014-01-18 20:05 +0100
  Re: question about input() and/or raw_input() Terry Reedy <tjreedy@udel.edu> - 2014-01-18 16:33 -0500
    Re: question about input() and/or raw_input() Grant Edwards <invalid@invalid.invalid> - 2014-01-19 16:14 +0000
      Re: question about input() and/or raw_input() Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-01-19 12:12 -0500
        Re: question about input() and/or raw_input() Grant Edwards <invalid@invalid.invalid> - 2014-01-19 17:42 +0000
          Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-20 04:59 +1100
  Re: question about input() and/or raw_input() Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-01-18 21:17 -0500
  Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-19 13:46 +1100
  Re: question about input() and/or raw_input() Rustom Mody <rustompmody@gmail.com> - 2014-01-18 20:15 -0800
    Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-19 15:21 +1100
      Re: question about input() and/or raw_input() Rustom Mody <rustompmody@gmail.com> - 2014-01-18 20:43 -0800
        Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-19 15:59 +1100
          Re: question about input() and/or raw_input() Rustom Mody <rustompmody@gmail.com> - 2014-01-19 00:26 -0800
            Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-19 21:39 +1100
            Re: question about input() and/or raw_input() Ethan Furman <ethan@stoneleaf.us> - 2014-01-19 08:14 -0800
            Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-20 03:38 +1100
            Re: question about input() and/or raw_input() Ethan Furman <ethan@stoneleaf.us> - 2014-01-19 09:50 -0800
            Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-20 05:41 +1100
            Re: question about input() and/or raw_input() Ethan Furman <ethan@stoneleaf.us> - 2014-01-19 11:16 -0800
  Re: question about input() and/or raw_input() Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-01-19 06:24 +0000
  Re: question about input() and/or raw_input() Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-01-19 18:07 +0000
    Re: question about input() and/or raw_input() Grant Edwards <invalid@invalid.invalid> - 2014-01-19 18:15 +0000
      Re: question about input() and/or raw_input() Roy Smith <roy@panix.com> - 2014-01-19 13:37 -0500
        Re: question about input() and/or raw_input() Chris Angelico <rosuav@gmail.com> - 2014-01-20 05:43 +1100
        Re: question about input() and/or raw_input() Grant Edwards <invalid@invalid.invalid> - 2014-01-19 19:11 +0000
        Re: question about input() and/or raw_input() Gene Heskett <gheskett@wdtv.com> - 2014-01-19 15:09 -0500
      Re: question about input() and/or raw_input() Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-01-19 19:17 +0000
      Re: question about input() and/or raw_input() Larry Martell <larry.martell@gmail.com> - 2014-01-19 12:24 -0700
      Re: question about input() and/or raw_input() Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-01-19 19:29 +0000
  Re: question about input() and/or raw_input() Gene Heskett <gheskett@wdtv.com> - 2014-01-19 15:12 -0500
  Re: question about input() and/or raw_input() Larry Martell <larry.martell@gmail.com> - 2014-01-19 13:22 -0700

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