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Re: Is there any difference between print 3 and print '3' in Python ?

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On 9/10/2012 2:33 AM, Dwight Hutto wrote:
>
>
> On Sun, Sep 9, 2012 at 10:41 AM, Ian Foote <ian@feete.org
> <mailto:ian@feete.org>> wrote:
>
>     On 09/09/12 14:23, iMath wrote:
>
>         在 2012年3月26日星期一UTC+8下午7时45分26秒，__iMath写道：
>
>             I know the print statement produces the same result when
>             both of these two instructions are executed ,I just want to
>             know Is there any difference between print 3 and print '3'
>             in Python ?
>
>         thx everyone
>
>
> Here's a future import though I used,so I can use the planned 3 with a
> 2x python version in the command line interpreter:
>
> Microsoft Windows [Version 6.1.7600]
> Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
>
> C:\Users\david>c:\python26\python.exe
> Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit
> (Intel)] on
> win32
> Type "help", "copyright", "credits" or "license" for more information.
>  >>> exit()
>
> C:\Users\david>c:\python27_64\python.exe
> Python 2.7.2 (default, Jun 12 2011, 14:24:46) [MSC v.1500 64 bit
> (AMD64)] on win
> 32
> Type "help", "copyright", "credits" or "license" for more information.
>  >>> import __future__
>  >>> x = 3
>  >>> y = '3'
>  >>> print(x)
> 3
>  >>> print(y)
> 3
>  >>>
>  >>> type(x)
> <type 'int'>
>  >>> type(y)
> <type 'str'>
>
>  >>> z = '%i' % (3)
>  >>> type(z)
> <type 'str'>
>  >>>
>
> In other words type(value), and find out the difference.

print(x) prints str(x), which is meant to be a 'friendly' 
representation. To see a difference,

 >>> print(repr(3))
3
 >>> print(repr('3'))
'3'

-- 
Terry Jan Reedy

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Re: Is there any difference between print 3 and print '3' in Python ? iMath <redstone-cold@163.com> - 2012-09-09 06:23 -0700
  Re: Is there any difference between print 3 and print '3' in Python ? Ian Foote <ian@feete.org> - 2012-09-09 15:41 +0100
  Re: Is there any difference between print 3 and print '3' in Python ? Benjamin Kaplan <benjamin.kaplan@case.edu> - 2012-09-09 23:55 -0700
  Re: Is there any difference between print 3 and print '3' in Python ? Terry Reedy <tjreedy@udel.edu> - 2012-09-10 03:16 -0400

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