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Groups > comp.lang.python > #91748

Re: Where is 'palindrome' defined?

Newsgroups comp.lang.python
Date 2015-06-01 18:07 -0700
References <83a279a3-133d-4a50-9af3-054233bcc6af@googlegroups.com> <888b51eb-0ede-4120-a914-aeec45d6366d@googlegroups.com>
Message-ID <2698673b-3867-41dd-bd02-18a6c768cadf@googlegroups.com> (permalink)
Subject Re: Where is 'palindrome' defined?
From sohcahtoa82@gmail.com

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On Monday, June 1, 2015 at 5:55:14 PM UTC-7, fl wrote:
> On Sunday, May 31, 2015 at 9:46:56 PM UTC-7, fl wrote:
> > Hi,
> > 
> > When I search solution of reverse a string/number, I came across a short
> > function online:
> > 
> > >>> def palindrome(num):
> > 	return str(num) == str(num)[::-1]
> > 
> > I thought that it is a general function. And with the following variable:
> > 
> > >>> a
> > '1234_5555'
> > 
> > >>> parlindrome(a)
> > 
> > Traceback (most recent call last):
> >   File "<pyshell#126>", line 1, in <module>
> >     parlindrome(a)
> > NameError: name 'parlindrome' is not defined
> > 
> > 
> > Then, I find that parlindrome is a special checking mirrored word.
> > I use Python 2.7.9. Why does the error message show   
> > 
> > name 'parlindrome' is not defined
> > 
> > 
> > 
> > Thanks,
> 
> Thanks, I realize that it was spelled wrong. Now, with the correct spelling
> the result is a 'False'. I have expected it gives reversed string. Is the 
> function behaves correct or not?
> 
> 
> Thanks,
> 
> 
> 
> 
> >>> a='1234'
> >>> def palindrome(num):
> 	return str(num) == str(num)[::-1]
> >>> palindrome(a)
> False
> >>> palindrome("fread")
> False

If you want the reversed string, then just use a[::-1].  Your palindrome function simply returns a boolean telling you whether or not the string you gave it is a palindrome.

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Thread

Where is 'palindrome' defined? fl <rxjwg98@gmail.com> - 2015-05-31 21:46 -0700
  Re: Where is 'palindrome' defined? Gary Herron <gherron@digipen.edu> - 2015-05-31 23:55 -0700
    Re: Where is 'palindrome' defined? Grant Edwards <invalid@invalid.invalid> - 2015-06-01 15:02 +0000
  Re: Where is 'palindrome' defined? Larry Hudson <orgnut@yahoo.com> - 2015-05-31 23:56 -0700
  Re: Where is 'palindrome' defined? David Palao <dpalao.python@gmail.com> - 2015-06-01 08:58 +0200
    Re: Where is 'palindrome' defined? Marko Rauhamaa <marko@pacujo.net> - 2015-06-01 12:21 +0300
      Re: Where is 'palindrome' defined? David Palao <dpalao.python@gmail.com> - 2015-06-01 11:41 +0200
      Re: Where is 'palindrome' defined? John Ladasky <john_ladasky@sbcglobal.net> - 2015-06-02 14:14 -0700
        Re: Where is 'palindrome' defined? Marko Rauhamaa <marko@pacujo.net> - 2015-06-03 01:30 +0300
  Re: Where is 'palindrome' defined? Omar Abou Mrad <omar.aboumrad@gmail.com> - 2015-06-01 10:00 +0300
  Re: Where is 'palindrome' defined? Denis McMahon <denismfmcmahon@gmail.com> - 2015-06-01 15:17 +0000
  Re: Where is 'palindrome' defined? fl <rxjwg98@gmail.com> - 2015-06-01 17:55 -0700
    Re: Where is 'palindrome' defined? sohcahtoa82@gmail.com - 2015-06-01 18:07 -0700
    Re: Where is 'palindrome' defined? MRAB <python@mrabarnett.plus.com> - 2015-06-02 02:10 +0100

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