[Idle-dev] Idle does not open on mac

[Guido van Rossum]

I think that classic Macs were already dead and buried when I designed this
-- in my recollection I really only cared about UNIX (which includes OSX)
and Windows.


On Fri, Aug 23, 2013 at 1:41 PM, Terry Reedy <tjreedy at udel.edu> wrote:

> On 8/23/2013 2:13 PM, Guido van Rossum wrote:
>
>> I would recommend trying to use the subprocess module.
>>
>
> Rev 71746, 2011-8-3, switched subprocess startup from os.spawnv to
> subprocess for 3.2 +, but not for 2.7 ;-(.
>
>
>  I don't believe
>> it existed when I first designed this part of IDLE.
>>
>
> The 2.x startup line was last revised 2003-8-14 and must date from
> earlier. Subprocess arrived in 2.4, 2004 Nov 30.
>
>
>  However I would not
>> use communicate(), which is meant as a simplified API for sending one
>> input string and waiting for the subprocess to exit.
>>
>
> Or at least get whatever output is ready.
>
>
>  There is a low-level API to let you send multiple strings
>>
> > and receive output back as it becomes available.
>
> Right, Popen.stdin/out/err are the 'file' objects.
>
> os.popen3 also makes these available, but was unix, windows only. I
> presume that excludes classic Macs. Is that why sockets were used instead?
>
> Switching from sockets, which do not always connect, to pipes established
> as part of the popen call should also make it more feasible to always run
> user code in a subprocess and eliminate the -n option.
> http://bugs.python.org/**issue16123 <http://bugs.python.org/issue16123>
> and thereby simplify some sections of code. Amaury suggested the switch on
> that issue.
>
>
>  (You may have to create threads to read stdout and stderr.)
>>
>
> I hope not ;-).
>
>
> --
> Terry Jan Reedy
>
> ______________________________**_________________
> IDLE-dev mailing list
> IDLE-dev at python.org
> http://mail.python.org/**mailman/listinfo/idle-dev<http://mail.python.org/mailman/listinfo/idle-dev>
>



-- 
--Guido van Rossum (python.org/~guido)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/idle-dev/attachments/20130823/915d8f05/attachment.html>