Re: [sage-support] How to handle file in Sage

[John Cremona]

On 19 October 2014 20:02, William Stein  wrote:
> On Sun, Oct 19, 2014 at 4:52 AM, Santanu Sarkar
>  wrote:
>> I have a text file abc.txt in Desktop where  I have written  A=[1,2,3,4]. Is
>> it possible
>> to call this array A from Sage notebook?
>>
>> When I write the following in notebook,
>>
>>  A1 = load("/Desktop/abc.txt")
>
> You could do this:
>
> exec preparse(open('/Desktop/abc.txt').read())
>
> or name your file abc.sage and do
>
> load('/Desktop/abc.sage')
>
> in the notebook (maybe), or
>
> %execfile /Desktop/abc.sage
>
> on the command line.  (That one has to use %execfile and %load doesn't
> work continues to be a change that I am unhappy with.)

%runfile abc.sage

works fine, that is what I use all the time.  The extension has to be
sage or py (or pyx or spyx or m but the would be read / parsed
differently)

John
>
> Published example (requires login still):
>
>
> https://cloud.sagemath.com/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/files/2014-10-19-115550-load/
>
>  -- William
>
>>
>> getting
>>
>> Traceback (most recent call last):
>>   File "", line 1, in 
>>   File "_sage_input_49.py", line 10, in 
>> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8
>> -*-\\n" +
>> _support_.preparse_worksheet_cell(base64.b64decode("QTEgPSBsb2FkKCIvRGVza3RvcC9hYmMudHh0Iik="),globals())+"\\n");
>> execfile(os.path.abspath("___code___.py"))
>>   File "", line 1, in 
>>
>>   File "/tmp/tmpgD_ocu/___code___.py", line 2, in 
>> exec compile(u'A1 = load("/Desktop/abc.txt")
>>   File "", line 1, in 
>>
>>   File "sage_object.pyx", line 862, in sage.structure.sage_object.load
>> (sage/structure/sage_object.c:9317)
>> IOError: [Errno 2] No such file or directory: '/Desktop/abc.txt.sobj'
>>
>>
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>
>
>
> --
> William Stein
> Professor of Mathematics
> University of Washington
> http://wstein.org
>
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Re: [sage-support] How to handle file in Sage

[William Stein]

On Oct 20, 2014 1:20 AM, "John Cremona"  wrote:
>
> On 19 October 2014 20:02, William Stein  wrote:
> > On Sun, Oct 19, 2014 at 4:52 AM, Santanu Sarkar
> >  wrote:
> >> I have a text file abc.txt in Desktop where  I have written
A=[1,2,3,4]. Is
> >> it possible
> >> to call this array A from Sage notebook?
> >>
> >> When I write the following in notebook,
> >>
> >>  A1 = load("/Desktop/abc.txt")
> >
> > You could do this:
> >
> > exec preparse(open('/Desktop/abc.txt').read())
> >
> > or name your file abc.sage and do
> >
> > load('/Desktop/abc.sage')
> >
> > in the notebook (maybe), or
> >
> > %execfile /Desktop/abc.sage
> >
> > on the command line.  (That one has to use %execfile and %load doesn't
> > work continues to be a change that I am unhappy with.)
>
> %runfile abc.sage
>
> works fine, that is what I use all the time.  The extension has to be
> sage or py (or pyx or spyx or m but the would be read / parsed
> differently)

Thanks - I meant %runfile not %execfile.  I find it hard to remember, which
is yet another reason I am against removal of the more memorable %load that
we had for years.

>
> John
> >
> > Published example (requires login still):
> >
> >
https://cloud.sagemath.com/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/files/2014-10-19-115550-load/
> >
> >  -- William
> >
> >>
> >> getting
> >>
> >> Traceback (most recent call last):
> >>   File "", line 1, in 
> >>   File "_sage_input_49.py", line 10, in 
> >> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8
> >> -*-\\n" +
> >>
_support_.preparse_worksheet_cell(base64.b64decode("QTEgPSBsb2FkKCIvRGVza3RvcC9hYmMudHh0Iik="),globals())+"\\n");
> >> execfile(os.path.abspath("___code___.py"))
> >>   File "", line 1, in 
> >>
> >>   File "/tmp/tmpgD_ocu/___code___.py", line 2, in 
> >> exec compile(u'A1 = load("/Desktop/abc.txt")
> >>   File "", line 1, in 
> >>
> >>   File "sage_object.pyx", line 862, in sage.structure.sage_object.load
> >> (sage/structure/sage_object.c:9317)
> >> IOError: [Errno 2] No such file or directory: '/Desktop/abc.txt.sobj'
> >>
> >>
> >> --
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Groups
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> >> For more options, visit https://groups.google.com/d/optout.
> >
> >
> >
> > --
> > William Stein
> > Professor of Mathematics
> > University of Washington
> > http://wstein.org
> >
> > --
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[sage-support] interact.sagemath.org down?

[Benedikt Magnússon]

Why is interact.sagemath.org down?
Is this a temporary problem or has it been discontinued? 
Now it only points to William Stein's homepage.

-Benedikt

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[sage-support] Re: interact.sagemath.org down?

[kcrisman]

> Why is interact.sagemath.org down?
> Is this a temporary problem or has it been discontinued? 
> Now it only points to William Stein's homepage.
>

I assume there must have been spam problems, though Jason had done 
something to disallow such comments a month or two ago, so I'm a little 
surprised at that.

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Re: [sage-support] Re: interact.sagemath.org down?

[William Stein]

On Mon, Oct 20, 2014 at 6:05 AM, kcrisman  wrote:
>
>> Why is interact.sagemath.org down?
>> Is this a temporary problem or has it been discontinued?
>> Now it only points to William Stein's homepage.
>
>
> I assume there must have been spam problems, though Jason had done something
> to disallow such comments a month or two ago, so I'm a little surprised at
> that.

We shutdown the old computer boxen.math.washington.edu, on which
interact.sagemath.org was (maybe?) hosted, since it was running a very
old unpatch-able version of Linux.   We gave people weeks to migrate
things over, but I guess nobody cared about interact.sagemath.org.

Probably somebody could start it running again on the new
boxen.math.washington.edu, which is running again with a new OS.


 -- William

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

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Re: [sage-support] Re: interact.sagemath.org down?

[slelievre]

Le lundi 20 octobre 2014 18:44:04 UTC+2, William a écrit :
>
> On Mon, Oct 20, 2014 at 6:05 AM, kcrisman > 
> wrote: 
> > 
> >> Why is interact.sagemath.org down? 
> >> Is this a temporary problem or has it been discontinued? 
> >> Now it only points to William Stein's homepage. 
> > 
> > 
> > I assume there must have been spam problems, though Jason had done 
> something 
> > to disallow such comments a month or two ago, so I'm a little surprised 
> at 
> > that. 
>
> We shutdown the old computer boxen.math.washington.edu, on which 
> interact.sagemath.org was (maybe?) hosted, since it was running a very 
> old unpatch-able version of Linux.   We gave people weeks to migrate 
> things over, but I guess nobody cared about interact.sagemath.org. 
>
> Probably somebody could start it running again on the new 
> boxen.math.washington.edu, which is running again with a new OS.
>

Well, following the announcement of imminent shutdown of boxen:

https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/CNFUqkk5F8IJ

there was a post by Jason Grout warning that interact was running
from there, but he didn't have time to take care of it:

https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/vzhy44OS7tQJ

Jason's post was a couple of days after the other posts in the thread,
and so maybe it wasn't noticed.

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Re: [sage-support] Re: interact.sagemath.org down?

[slelievre]

William wrote:
>
> On Mon, Oct 20, 2014 at 6:05 AM, kcrisman > 
> wrote: 
> > 
> >> Why is interact.sagemath.org down? 
> >> Is this a temporary problem or has it been discontinued? 
> >> Now it only points to William Stein's homepage. 
> > 
> > 
> > I assume there must have been spam problems, though Jason had done 
> something 
> > to disallow such comments a month or two ago, so I'm a little surprised 
> at 
> > that. 
>
> We shutdown the old computer boxen.math.washington.edu, on which 
> interact.sagemath.org was (maybe?) hosted, since it was running a very 
> old unpatch-able version of Linux.   We gave people weeks to migrate 
> things over, but I guess nobody cared about interact.sagemath.org. 
>
> Probably somebody could start it running again on the new 
> boxen.math.washington.edu, which is running again with a new OS.
>

 Well, following the announcement of imminent shutdown of boxen:

https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/CNFUqkk5F8IJ

there was a post by Jason Grout warning that interact was running
from there. He said he didn't have time to set it up elsewhere, but
apparently he made some backup, so it might be recoverable:

https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/vzhy44OS7tQJ

Jason's post was a couple of days after the other posts in the thread,
and so maybe it wasn't noticed.

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Re: [sage-support] Re: interact.sagemath.org down?

[William Stein]

On Oct 20, 2014 10:18 AM, "slelievre"  wrote:
>
>
>
> William wrote:
>>
>> On Mon, Oct 20, 2014 at 6:05 AM, kcrisman  wrote:
>> >
>> >> Why is interact.sagemath.org down?
>> >> Is this a temporary problem or has it been discontinued?
>> >> Now it only points to William Stein's homepage.
>> >
>> >
>> > I assume there must have been spam problems, though Jason had done
something
>> > to disallow such comments a month or two ago, so I'm a little
surprised at
>> > that.
>>
>> We shutdown the old computer boxen.math.washington.edu, on which
>> interact.sagemath.org was (maybe?) hosted, since it was running a very
>> old unpatch-able version of Linux.   We gave people weeks to migrate
>> things over, but I guess nobody cared about interact.sagemath.org.
>>
>> Probably somebody could start it running again on the new
>> boxen.math.washington.edu, which is running again with a new OS.
>
>
>  Well, following the announcement of imminent shutdown of boxen:
>
> https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/CNFUqkk5F8IJ
>
> there was a post by Jason Grout warning that interact was running
> from there. He said he didn't have time to set it up elsewhere, but
> apparently he made some backup, so it might be recoverable:
>
>
> https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/vzhy44OS7tQJ
>
> Jason's post was a couple of days after the other posts in the thread,
> and so maybe it wasn't noticed.
>

We noticed his message.  We didn't delete any data, so getting the site
back is certainly possible.   We waited a few weeks but boxen had to be
shut down for security reasons.

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[sage-support] Re: interact.sagemath.org down?

[Benedikt Magnússon]

 It would be nice to have the page, or something similar available. 
Sage could use a nice showcase with and without @interact

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Re: [sage-support] Re: interact.sagemath.org down?

[William Stein]

On Mon, Oct 20, 2014 at 2:17 PM, Benedikt Magnússon
 wrote:
>  It would be nice to have the page, or something similar available.
> Sage could use a nice showcase with and without @interact

I don't think anybody doesn't want the page to exist.  However, if
nobody will volunteer to maintain it, then...

There are still a large number of interact examples here, by the way:
http://wiki.sagemath.org/interact

 -- William


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

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Re: [sage-support] Re: interact.sagemath.org down?

[Jason Grout]

On 10/20/14, 13:25, William Stein wrote:


On Oct 20, 2014 10:18 AM, "slelievre" mailto:samuel.lelie...@gmail.com>> wrote:
 >
 >
 >
 > William wrote:
 >>
 >> On Mon, Oct 20, 2014 at 6:05 AM, kcrisman mailto:kcri...@gmail.com>> wrote:
 >> >
 >> >> Why is interact.sagemath.org  down?
 >> >> Is this a temporary problem or has it been discontinued?
 >> >> Now it only points to William Stein's homepage.
 >> >
 >> >
 >> > I assume there must have been spam problems, though Jason had done
something
 >> > to disallow such comments a month or two ago, so I'm a little
surprised at
 >> > that.
 >>
 >> We shutdown the old computer boxen.math.washington.edu
, on which
 >> interact.sagemath.org  was (maybe?)
hosted, since it was running a very
 >> old unpatch-able version of Linux.   We gave people weeks to migrate
 >> things over, but I guess nobody cared about interact.sagemath.org
.
 >>
 >> Probably somebody could start it running again on the new
 >> boxen.math.washington.edu , which
is running again with a new OS.
 >
 >
 >  Well, following the announcement of imminent shutdown of boxen:
 >
 > https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/CNFUqkk5F8IJ
 >
 > there was a post by Jason Grout warning that interact was running
 > from there. He said he didn't have time to set it up elsewhere, but
 > apparently he made some backup, so it might be recoverable:
 >
 >
 > https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/vzhy44OS7tQJ
 >
 > Jason's post was a couple of days after the other posts in the thread,
 > and so maybe it wasn't noticed.
 >

We noticed his message.  We didn't delete any data, so getting the site
back is certainly possible.   We waited a few weeks but boxen had to be
shut down for security reasons.


I backed up the data (both the mysql database and the Drupal files) 
before I sent that message, so it should be ready to roll out again.  If 
boxen is back up again, I can try to do it in the next week or so.  Or 
if someone else wants to do it, please let me know.


I think having public cloud files, like William just enabled, plus a 
curated index of really nice examples, plus maybe a wiki page of short 
simple examples, is a better approach than the rather heavy-weight 
interact.sagemath.org.  I think the biggest thing I took from running 
interact.sagemath.org is that we should do all we can to lower the 
barrier between creation and sharing.  I now think that the barrier of 
posting to a separate interact.sagemath.org website (and actively 
maintaining it against spam) is rather high compared to just hitting a 
button to publish a worksheet.


Thanks,

Jason

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Re: [sage-support] Re: interact.sagemath.org down?

[William Stein]

On Mon, Oct 20, 2014 at 6:10 PM, Jason Grout
 wrote:
> On 10/20/14, 13:25, William Stein wrote:
>>
>>
>> On Oct 20, 2014 10:18 AM, "slelievre" > > wrote:
>>  >
>>  >
>>  >
>>  > William wrote:
>>  >>
>>  >> On Mon, Oct 20, 2014 at 6:05 AM, kcrisman > > wrote:
>>  >> >
>>  >> >> Why is interact.sagemath.org  down?
>>  >> >> Is this a temporary problem or has it been discontinued?
>>  >> >> Now it only points to William Stein's homepage.
>>  >> >
>>  >> >
>>  >> > I assume there must have been spam problems, though Jason had done
>> something
>>  >> > to disallow such comments a month or two ago, so I'm a little
>> surprised at
>>  >> > that.
>>  >>
>>  >> We shutdown the old computer boxen.math.washington.edu
>> , on which
>>  >> interact.sagemath.org  was (maybe?)
>> hosted, since it was running a very
>>  >> old unpatch-able version of Linux.   We gave people weeks to migrate
>>  >> things over, but I guess nobody cared about interact.sagemath.org
>> .
>>  >>
>>  >> Probably somebody could start it running again on the new
>>  >> boxen.math.washington.edu , which
>> is running again with a new OS.
>>  >
>>  >
>>  >  Well, following the announcement of imminent shutdown of boxen:
>>  >
>>  > https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/CNFUqkk5F8IJ
>>  >
>>  > there was a post by Jason Grout warning that interact was running
>>  > from there. He said he didn't have time to set it up elsewhere, but
>>  > apparently he made some backup, so it might be recoverable:
>>  >
>>  >
>>  > https://groups.google.com/d/msg/sagemath-users/s0bUsGN4lMQ/vzhy44OS7tQJ
>>  >
>>  > Jason's post was a couple of days after the other posts in the thread,
>>  > and so maybe it wasn't noticed.
>>  >
>>
>> We noticed his message.  We didn't delete any data, so getting the site
>> back is certainly possible.   We waited a few weeks but boxen had to be
>> shut down for security reasons.
>
>
> I backed up the data (both the mysql database and the Drupal files) before I
> sent that message, so it should be ready to roll out again.  If boxen is
> back up again, I can try to do it in the next week or so.  Or if someone
> else wants to do it, please let me know.
>
> I think having public cloud files, like William just enabled, plus a curated

For example (no login required):

   
https://cloud.sagemath.com/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/files/interacts/

I haven't added much, but that could easily have much more.  Also, I
plan to soon add support for hashtags, searching (descriptions of)
public files, etc. At that point it will be necessary to make
reporting spam easy, but now it isn't since the only way to find
public files is via knowing the url.

> index of really nice examples, plus maybe a wiki page of short simple
> examples, is a better approach than the rather heavy-weight
> interact.sagemath.org.  I think the biggest thing I took from running
> interact.sagemath.org is that we should do all we can to lower the barrier
> between creation and sharing.  I now think that the barrier of posting to a
> separate interact.sagemath.org website (and actively maintaining it against
> spam) is rather high compared to just hitting a button to publish a
> worksheet.
>
> Thanks,
>
> Jason
>



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

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