I confirm the issue experienced by John with Chromium: on my Ubuntu 20.04.3
computer, the implicit_plot3d command from Sage console
- works out of the box by opening a new tab in Firefox (my default browser)
- results in a file access error with Chromium, after having selected the
latter by
sage: sage.misc.viewer.viewer.browser('chromium')
It turns out that one cannot even open the directory ~/.sage from Chromium
with a simple CTRL+O: this results in "Permission denied", while the same
CTRL+O works fine with Firefox. Actually, no hidden directory can be opened
from Chromium. So this is certainly a configuration issue on the Chromium
side.
Eric.
Le lundi 8 novembre 2021 à 12:25:24 UTC+1, John Cremona a écrit :
> I don't often use 3D graphics, but when I run implicitplot3d() I get
> a file permissions error (on ubuntu 20.04):
>
> # example from the docstring
> sage: var('x,y,z')
> (x, y, z)
> sage: implicit_plot3d(x^2+y^2+z^2==4, (x,-3,3), (y,-3,3), (z,-3,3))
> Launched html viewer for Graphics3d Object
>
> Over in my browser (chromium-browser) I see the error message "Access
> to the file was deniedThe file at
> file:///home/john/.sage/temp/john-Latitude-E5470/2250012/tmp_x5e1jfy0.html
> is not readable. It may have been removed, moved or file permissions
> may be preventing access." I changed the permissions on .sage and
> everything under it to a+rx and reloaded, with no change. I deleted
> all of ~/.sage and restarted sage and reran the commands, but the same
> happened.
>
> I can view other html files in my home directory using the browser.
>
> What should I do?
>
> John
>
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