[Tutor] Hello, and a newbie question

[Dave Angel]

On 04/16/2013 05:20 PM, Andy McKenzie wrote:
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>
     <SNIP>
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> Thanks for the advice, folks.  Given that it looks like the biggest changes
> are unicode handling (which I'm not going to need any time soon) and the
> way the print function works, I decided to stick with 2.7.  I'm an IT guy,
> though unemployed at the moment, and it occurred to me that "I'm familiar
> with Python, but not the version your entire established codebase is in"
> wasn't a great thing to have on a resume.
>
> Since it looks like the new formatting for print -- that is, print("Print
> this stuff!") -- works fine in 2.7, I'm just getting myself used to doing
> that from the beginning.
>

The degenerate print, where you're printing exactly one thing, works the 
same.  But if you have two things to print, putting parens around them 
in Python 2.x will cause a tuple to be printed, rather than printing the 
two with a space between.

 >>> print(3,5)      -- version 2.x
(3, 5)

 >>> print(3,5)      -- version 3.x
3 5

To get 3.x functionality, you'd want to use
     from __future__ import print_function

and I do not think that works in 2.6 or older versions.  It also can be 
awkward even in 2.7 if you're mixing existing code with new print functions.



-- 
DaveA