On 5/24/07, Marshall Hampton <[EMAIL PROTECTED]> wrote:
> Help! I was hoping to collaborate with someone using SAGE this week
> via a notebook, and I can't unless I get this fixed.
>
> Because I was getting errors as described above, where the leading /
> was missing on the path, I used a double // in my path for the
> notebook, i.e. a command starting out as:
>
> notebook('//Users/mh/test', address = '131.
>
> etc.
>
> This gave me no errors, but the graphics still don't display! I don't
> get it.
I am now able to replicate this bug using the notebook
you posted recently. This will get fixed for SAGE-2.5.4.
However, as a temporary workaround, do the following:
(1) start SAGE
(2) cd to the directory that contains your notebook
(3) Type notebook('MySAGE3')
For example, I put your MySAGE3 on my Desktop. Then:
sage: cd /Users/was/Desktop/
/Users/was/Desktop
sage: notebook('MySAGE3',username='was',password='was')
... now it works ...
---
Many thanks for finding this bug and persistently reporting
it. It is users like you that really help to improve the quality
of SAGE. Thanks!
-- William
> M. Hampton
>
> On May 23, 11:07 am, Marshall Hampton <[EMAIL PROTECTED]> wrote:
> > Stupid question: How do you directly load a .sobj file?
> >
> > This display problem seems to have actually gotten worse; now when I
> > start up a brand-new notebook the problem appears right away.
> > Upgrading to 2.5.3 didn't seem to help.
> >
> > In case it helps at all, I have created a record of my entire notebook
> > directory at:
> >
> > http://www.d.umn.edu/~mhampton/MySAGE3.zip
> >
> > When I execute the only command:
> >
> > show(line(((1,0),(0,1))))
> >
> > the correct PNG file appears in the filesystem but nothing is
> > displayed and I get the error (in the terminal):
> >
> > file not found [Errno 2] No such file or directory: 'Users/guest/
> > MySAGE/MySAGE3/worksheets/_scratch_/cells/0/sage0.png'
> > nomad66-243.d.umn.edu - - [23/May/2007 10:58:35] "GET /Users/guest/
> > MySAGE/MySAGE3/worksheets/_scratch_/cells/0/sage0.png?1 HTTP/1.1" 404
> > -
> >
> > So it seems that something is stripping the leading / from the path.
> >
> > I'm quite puzzled by this and as to how it could have gotten worse.
> >
> > -Marshall Hampton
> >
> > On May 18, 12:03 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> >
> > > On 5/18/07, Marshall Hampton <[EMAIL PROTECTED]> wrote:
> >
> > > > Well, yeah, I'm sure it was dumb - my first guess was that the units
> > > > were pixels - but I think the interesting thing is the subsequent
> > > > effect on the worksheet.
> >
> > > > I haven't found a simple reproducible version of my more serious,
> > > > previous problem which corrupts the entire notebook. I have several
> > > > worksheets that I would like to 'rescue' from that - how do I copy
> > > > worksheets from one notebook to another? Can I just recursively copy
> > > > the entire worksheet directory? I think I tried that once and it gave
> > > > me problems.
> >
> > > The worksheet directory is -- unfortunately -- not what defines the
> > > worksheet. Can you view the worksheet and click "edit"? If so, you
> > > can then just paste the result into another edit of another worksheet
> > > in a different notebook.
> >
> > > If this doesn't work for you, let me know. The notebook itself is stored
> > > in nb.sobj in the notebook directory, and one can directly recover a
> > > lot from it by simply directly loading it from Python command line.
> >
> > > > While I am on the subject, I am wondering how to restore the sort
> > > > of .sws files that one can save from the notebook.
> >
> > > Just open any worksheet, then click the upload button in the upper
> > > right of the notebook. (Yes, I know it is stupid that you have to open
> > > a worksheet in order to upload one.)
> >
> > > > Thanks,
> > > > Marshall Hampton
> >
> > > > On May 17, 11:18 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> > > > > On 5/17/07, Marshall Hampton <[EMAIL PROTECTED]> wrote:
> >
> > > > > > I have a more reproducible version of this bug. If you execute the
> > > > > > following three commands in seperate cells, you should see the sort
> > > > > > of
> > > > > > problem I am having:
> >
> > > > > > show(line(((0,0),(1,1))))
> >
> > > > > > show(line(((0,0),(1,1))),figsize=[1280,800])
> >
> > > > > Gees -- that is crazy huge. A reasonable figsize would be
> > > > > something like [8,5]. I think the units of figsize are something
> > > > > like inches... You probably seriously exceeded the capacity
> > > > > of SAGE/matplotlib or your browser by making such a large
> > > > > figure.
> >
> > > > > > show(line(((0,0),(1,1))))
> >
> > > > > > The middle command generates an error - I was originally trying to
> > > > > > resize a more complicated figure and this syntax must be wrong. But
> > > > > > then the show command won't work at all. Unlike my previous
> > > > > > problems,
> > > > > > however, stopping and restarting sage will fix this, as will
> > > > > > creating
> > > > > > a new worksheet. I sense they related somehow though.
> >
> > > > > > M.Hampton
> >
> > > > > > On May 16, 8:42 pm, Marshall Hampton <[EMAIL PROTECTED]> wrote:
> > > > > > > I copied/pasted it from the notebook, so its not a typo.
> >
> > > > > > > I opened it by navigating manually through the filesystem, but the
> > > > > > > address is correct (with the leading /).
> >
> > > > > > > I haven't had a problem of this type before, and I have done some
> > > > > > > very
> > > > > > > similar things. The trouble began when I was writing some fairly
> > > > > > > buggy code working on a PHCpack parser. The next time I have
> > > > > > > access
> > > > > > > to that machine (probably Friday) I will start a completely new
> > > > > > > notebook, since perhaps my messed up worksheet somehow 'infected'
> > > > > > > the
> > > > > > > overall notebook (I did start new worksheets after the problems
> > > > > > > started). I did quit out of sage and restart, but with the same
> > > > > > > notebook command from my history.
> >
> > > > > > > Marshall
> >
> > > > > > > On May 16, 3:49 pm, "Justin C. Walker" <[EMAIL PROTECTED]> wrote:
> >
> > > > > > > > On May 16, 2007, at 1:35 PM, Marshall Hampton wrote:
> >
> > > > > > > > > I am having trouble getting the show() command to work in the
> > > > > > > > > notebook. After the following commands:
> >
> > > > > > > > > sage: a = [[[0.0, -1.0], [0.0, 1.0]], [[0.0, 1.0], [0.0,
> > > > > > > > > -1.0]]]
> > > > > > > > > sage: pts3=[point((pt[0],pt[1])) for w1 in a for pt in w1]
> > > > > > > > > sage: show(plot(pts3))
> >
> > > > > > > > > nothing happens. On the terminal display, it acts like the
> > > > > > > > > PNG file
> > > > > > > > > is not there:
> >
> > > > > > > > > file not found [Errno 2] No such file or directory:
> > > > > > > > > 'Users/guest/
> > > > > > > > > MySAGE/MySAGE/worksheets/test/cells/1/sage0.png'
> > > > > > > > > nomad66-243.d.umn.edu - - [16/May/2007 15:27:33] "GET
> > > > > > > > > /Users/guest/
> > > > > > > > > MySAGE/MySAGE/worksheets/test/cells/1/sage0.png?1 HTTP/1.1"
> > > > > > > > > 404 -
> >
> > > > > > > > It's odd that the two lines have slightly different filenames
> > > > > > > > (no
> > > > > > > > leading "/" in the first one). Did you type this or copy/paste?
> > > > > > > > It's a silly question, but it helps to rule out some things
> > > > > > > > (and you
> > > > > > > > deserve an award of some type if you did type it in :-})
> >
> > > > > > > > Could be quirk of the logging function, or it could be an
> > > > > > > > explanation...
> >
> > > > > > > > The above works fine on my Mac (which doesn't help, of course).
> > > > > > > > No
> > > > > > > > spaces in the name, it appears.
> >
> > > > > > > > Did you try opening the file by copy/pasting the name from the
> > > > > > > > log to
> > > > > > > > the terminal?
> >
> > > > > > > > Justin
> >
> > > > > > > > --
> > > > > > > > Justin C. Walker, Curmudgeon-at-Large
> > > > > > > > () The ASCII Ribbon Campaign
> > > > > > > > /\ Help Cure HTML Email
> >
> > > > > --
> > > > > William Stein
> > > > > Associate Professor of Mathematics
> > > > > University of Washingtonhttp://www.williamstein.org
> >
> > > --
> > > William Stein
> > > Associate Professor of Mathematics
> > > University of Washingtonhttp://www.williamstein.org
>
>
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://www.williamstein.org
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