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To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Is there any difference between print 3 and print '3' in Python ?
Date: Mon, 10 Sep 2012 03:16:48 -0400
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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:
>
>         =E5=9C=A8 2012=E5=B9=B43=E6=9C=8826=E6=97=A5=E6=98=9F=E6=9C=9F=E4=
=B8=80UTC+8=E4=B8=8B=E5=8D=887=E6=97=B645=E5=88=8626=E7=A7=92=EF=BC=8C__i=
Math=E5=86=99=E9=81=93=EF=BC=9A
>
>             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 =3D 3
>  >>> y =3D '3'
>  >>> print(x)
> 3
>  >>> print(y)
> 3
>  >>>
>  >>> type(x)
> <type 'int'>
>  >>> type(y)
> <type 'str'>
>
>  >>> z =3D '%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'=20
representation. To see a difference,

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

--=20
Terry Jan Reedy