Problem with -3 switch

[Chris Rebert]

On Fri, Jan 9, 2009 at 9:17 AM, Aivar Annamaa <concat_names at hotmail.com> wrote:
> Hi
>
> I'm getting started with Python and in order to get good habits for Python
> 3, i'd like to run my Python 2.6.1 with Python 3 warning mode.
>
> When i run
> python -3
>
> and execute statement
>>>> print 4
>
> then i expect to see a warning because i've understood that this statement
> is not valid in Python 3
>
> however no warning appears.
>
> Have is misunderstood something?

As was recently pointed out in a nearly identical thread, the -3
switch only points out problems that the 2to3 converter tool can't
automatically fix. Changing print to print() on the other hand is
easily fixed by 2to3.

Cheers,
Chris

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