SageMath Cloud printing all intermediate input

[Michael Yurko]

I've recently started using sagemath cloud as opposed to a local instance of the notebook. One big difference I've noticed is that in the cloud version, all intermediate output is being printed. However, this is quite annooying when trying to make a plot with matplotlib since writing something like "plt.xlabel('label')" will produce output. Is there a way to suppress this an get the old behavior of the notebook back?

[William Stein]

On Sun, Apr 6, 2014 at 11:36 PM, Michael Yurko <myu...@gmail.com> wrote:
> I've recently started using sagemath cloud as opposed to a local instance of the notebook. One big difference I've noticed is that in the cloud version, all intermediate output is being printed. However, this is quite annooying when trying to make a plot with matplotlib since writing something like "plt.xlabel('label')" will produce output. Is there a way to suppress this an get the old behavior of the notebook back?
>

No there is currently no way to switch to the old sagenb mode. What
happens is that the input is divided into blocks and each is executed
individually with the standard python sys.displayhook behavior.
There are some workarounds, e.g., (1) put your code in a function and
call that function, (2) _ = plt.xlabel('label'), (3) disable
sys.displayhook somehow.

William

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--
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

[kcrisman]

On Monday, April 7, 2014 12:16:58 PM UTC-4, William wrote:

On Sun, Apr 6, 2014 at 11:36 PM, Michael Yurko <myu...@gmail.com> wrote:
> I've recently started using sagemath cloud as opposed to a local instance of the notebook. One big difference I've noticed is that in the cloud version, all intermediate output is being printed. However, this is quite annooying when trying to make a plot with matplotlib since writing something like "plt.xlabel('label')" will produce output. Is there a way to suppress this an get the old behavior of the notebook back?
>

No there is currently no way to switch to the old sagenb mode.    What
happens is that the input is divided into blocks and each is executed
individually with the standard python sys.displayhook behavior.
There are some workarounds, e.g., (1) put your code in a function and
call that function, (2) _ = plt.xlabel('label'),   (3) disable
sys.displayhook somehow.

How does the IPython notebook handle this situation?  I would imagine the mpl situation would come up fairly frequently. 

[Michael Yurko]

Thanks for the reply. I'll look into the display hook a bit then. I've been using SMC for a few days now and have been very impressed. I guess this is the first "regression" that I have encountered.

[William Stein]

On Apr 7, 2014 11:45 AM, "Michael Yurko" <myu...@gmail.com> wrote:
>
> Thanks for the reply. I'll look into the display hook a bit then. I've been using SMC for a few days now and have been very impressed. I guess this is the first "regression" that I have encountered.
>

Thanks!! This was an on-purpose design decision though and you're the first to complain about it.  Let me know what happens.  I'm happy to make this functionality configurable, but not today.