[Tutor] breeds of Python .....

[S.Irfan Rizvi]

please remove me from here

















On Sat, Mar 31, 2012 at 4:28 PM, Modulok <modulok at gmail.com> wrote:
> After following the reading suggestions, I soon found myself looking
> at quite a few code examples that would only run under a particular
> version of python.  Finally, I converted the example that I was
> working on to run under Python3.  I just wondered if you guys would
> advise a newbie like me to concentrate on Python3 or stay with Python2
> and get into bad habits when it comes to change eventually?  Apart
> from the print and input functions, I haven't so far got a lot to
> re-learn.
>
> Kind regards,        Barry.
>
>
> Barry,
>
> If you're just starting out, go with 3.x. If you have a need for some third
> party modules that aren't yet available for 3.x, you'll have to stick with 2.x.
> Most beginner tutorials will work without changes, except for the print
> statement is now a function, e.g:
>
>    print "foo"
>
> Is now:
>
>    print("foo")
>
> There isn't a whole lot of difference in syntax to learn. Some modules have
> been renamed, some module functions re-worked, etc. Probably the biggest change
> is the move to all unicode strings. One thing you can do if you're running 2.x
> but want to get into the 3.x swing of things is turn on 3.x warnings. It will
> tell you if you did something the 2to3 tool can't automatically fix:
>
>    python2.6 -3
>
> If you want, you can actually use the 3.x style print function and true
> division when using 2.x by putting this at the top of your code::
>
>    from __future__ import print_function
>    from __future__ import division
>
> Now in 2.x, just like 3.x this will raise an exception:
>
>    print "foo"     #<-- Now fails in 2.x
>    print("foo")    #<-- Works.
>
> -Modulok-
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-- 
       Regards
     ~ S. Irfan Rizvi
 ADR-TS