[perl-python] 20050115, for statement

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  • Xah Lee

    #1

    [perl-python] 20050115, for statement

    © # this is an example of for statement
    © # the % symbol calculates the remainder
    © # of division.
    © # the range(m,n) function
    © # gives a list from m to n-1.
    ©
    © a = range(1,51)
    © for x in a:
    © if x % 2 == 0:
    © print x, 'even'
    ©
    © # note that in this example, for goes over a list.
    © # each time making x the value of the element.
    ©
    © ------------------------------------
    © # this is similar code in perl
    ©
    © @a=(1..50);
    © for $x (@a) {
    © if ( $x%2 ==0){
    © print $x, " even\n";
    © }}
    ©
    © # PS each daily tip can be run. Just
    © # copy the python part and save to a
    © # file and run it as "python
    © # file.py". Try it.
    ©
    ©
    © Note: this post is from the Perl-Python
    © a-day mailing list at
    © http://groups.yahoo.com/group/perl-python/
    © to subscribe, send an email to
    © perl-python-subscribe@yahoo groups.com if
    © you are reading it on a web page,
    © program examples may not run because
    © groups.google.c om changes the post slightly.
    ©
    © Xah
    © xah@xahlee.org
    © http://xahlee.org/PageTwo_dir/more.html

  • Michael Hoffman

    #2
    Re: [perl-python] 20050115, for statement

    Xah Lee wrote:
    [color=blue]
    > © a = range(1,51)
    > © for x in a:
    > © if x % 2 == 0:
    > © print x, 'even'[/color]

    Now he's mixing tabs and spaces. Hideous.

    Are you doing things wrong on purpose?
    --
    Michael Hoffman

    Comment

    • Steve Holden

      #3
      Re: [perl-python] 20050115, for statement

      Michael Hoffman wrote:
      [color=blue]
      > Xah Lee wrote:
      >[color=green]
      >> © a = range(1,51)
      >> © for x in a:
      >> © if x % 2 == 0:
      >> © print x, 'even'[/color]
      >
      >
      > Now he's mixing tabs and spaces. Hideous.
      >
      > Are you doing things wrong on purpose?[/color]

      Actually Xah is to be commended, since he's united the Perl and Python
      camps. Both agree he's a nuisance who is ill-informed about Perl *and*
      Python ;-)

      I can only presume it's egocentricity that keeps him cross-posting this
      nonsense to c.l.py and c.l.pe.misc despite the many deficiencies that
      have been remarked upon in both newsgroups.

      fraternal-greetings-to-the-perl-wordl-ly y'rs - steve
      --
      Steve Holden http://www.holdenweb.com/
      Python Web Programming http://pydish.holdenweb.com/
      Holden Web LLC +1 703 861 4237 +1 800 494 3119

      Comment

      • BrainDead

        #4
        Re: 20050115, for statement


        Steve Holden wrote:[color=blue]
        > Michael Hoffman wrote:
        >[color=green]
        > > Xah Lee wrote:
        > >[color=darkred]
        > >> © a = range(1,51)
        > >> © for x in a:
        > >> © if x % 2 == 0:
        > >> © print x, 'even'[/color]
        > >
        > >
        > > Now he's mixing tabs and spaces. Hideous.
        > >
        > > Are you doing things wrong on purpose?[/color]
        >
        > Actually Xah is to be commended, since he's united the Perl and[/color]
        Python[color=blue]
        > camps. Both agree he's a nuisance who is ill-informed about Perl[/color]
        *and*[color=blue]
        > Python ;-)
        >
        > I can only presume it's egocentricity that keeps him cross-posting[/color]
        this[color=blue]
        > nonsense to c.l.py and c.l.pe.misc despite the many deficiencies that[/color]
        [color=blue]
        > have been remarked upon in both newsgroups.
        >
        > fraternal-greetings-to-the-perl-wordl-ly y'rs - steve
        > --
        > Steve Holden http://www.holdenweb.com/
        > Python Web Programming http://pydish.holdenweb.com/
        > Holden Web LLC +1 703 861 4237 +1 800 494 3119[/color]

        I humbly suggest that Xah Lee Foxtrot Oscar, failing that would he/she
        stand up as the voice is rather muffled. Hardly original I know, but
        this crap is getting up my nose.

        I would much rather read the Timbot discussing things which mention the
        best operating system in the world, i.e. VMS, which for the uninitiated
        stands for Very Much Safer.

        Mark Lawrence.

        Comment

        • Jeremy Bowers

          #5
          Re: [perl-python] 20050115, for statement

          On Sat, 15 Jan 2005 10:54:28 +0000, Michael Hoffman wrote:
          [color=blue]
          > Xah Lee wrote:
          >[color=green]
          >> © a = range(1,51)
          >> © for x in a:
          >> © if x % 2 == 0:
          >> © print x, 'even'[/color]
          >
          > Now he's mixing tabs and spaces. Hideous.
          >
          > Are you doing things wrong on purpose?[/color]

          I think the most exciting thing is the breath-taking pace he has chosen. I
          mean, wow, we've been going for what, five days now and we're up to for
          loops? Woo!

          So far, even for his stated purpose, he's at negative value vs. just
          reading even the simplest tutorials for the languages. The value in
          Perl<->Python documentation is to help with idiom translation, syntax is
          truly trivial. At the rate he's going, he'll get out of Negative Value and
          start entering Colossal Waste Of Time in about a month.

          So good on you, Xah Lee. The world needs more people producing things of
          negative value and posting them everywhere they can. Wouldn't want The
          Masses (TM) to find the good resources, learn, and subsequently compete
          with people who know things already.

          (Hell, five days into Python and some people are already producing working
          Backgammon games (I think that was the post last week), and Xah Lee here
          is still on for loops! Woo! Go Xah!)

          Comment

          • Peter Hansen

            #6
            Re: [perl-python] 20050115, for statement

            Jeremy Bowers wrote:[color=blue]
            > (Hell, five days into Python and some people are already producing working
            > Backgammon games (I think that was the post last week), and Xah Lee here
            > is still on for loops! Woo! Go Xah!)[/color]

            Mah Jongg, actually (if we're thinking of the same post), which
            name is often applied in the world of computer games to a what
            amounts to the old game of "Concentrat ion" (rather than the real
            Mah Jongg which bears no more resemblance to the computerized
            version than Bridge bears to Go Fish). The player merely turns
            over cards/tiles two at a time and any identical pairs are removed.
            A backgammon game, with the computer actually playing against a
            human and all the logic that entails, would be much more sophisticated,
            and rather more work.

            ....not to diminish the impressiveness of someone new to Python
            building a visually attractive GUI application in only a few days
            and delivering it to the web which in several ways is far more
            than I've contributed in over five years. ;-) (Doffs hat to the
            former newbie who achieved this.)

            -Peter

            Comment

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