It does indeed sound like you switched to single-document mode. Control Shift Enter does not switch single-document mode anymore (people were accidentally triggering the mode too much). Now you'll need to switch out of it using the View menu, or the shortcut shown there (Shift Command D or Control Shift D on Windows?).
Thanks, Jason On Thu, Dec 6, 2018 at 7:13 AM <a.ma...@inrim.it> wrote: > using the example in > https://jupyterlab.readthedocs.io/en/stable/user/interface.html, that was > exactly how it appeared to me before! > > On Thursday, December 6, 2018 at 3:51:53 PM UTC+1, Chris Holdgraf wrote: >> >> Do you have an image of how the interface looked before stuff >> disappeared? Or how you 'expect' it to look? Maybe that'll help debug >> >> On Thu, Dec 6, 2018 at 9:46 AM <a.m...@inrim.it> wrote: >> >>> thank you for the idea! >>> But I dont think so, I start it with the alias >>> alias jup='cd /0ale;jupyter notebook --allow-root' >>> >>> and here's the output: >>> >>> [root@lambda ~]# jup >>> [I 09:10:03.860 NotebookApp] JupyterLab extension loaded from >>> /usr/lib/python2.7/site-packages/jupyterlab >>> >>> [I 09:10:03.860 NotebookApp] JupyterLab application directory is >>> /usr/share/jupyter/lab >>> >>> [I 09:10:03.867 NotebookApp] Serving notebooks from local directory:/0ale >>> >>> [I 09:10:03.868 NotebookApp] 0 active kernels >>> [I 09:10:03.868 NotebookApp] The Jupyter Notebook is running at: >>> [I 09:10:03.868 NotebookApp] http://localhost:8888/ >>> [I 09:10:03.868 NotebookApp] Use Control-C to stop this server and shut >>> down all kernels (twice to skip confirmation). >>> [I 09:10:04.095 NotebookApp] 302 GET /tree (::1) 2.41ms >>> [I 09:10:04.546 NotebookApp] 302 GET /login?next=%2Ftree (::1) 1.63ms >>> [I 09:10:04.557 NotebookApp] 302 GET /login?next=%2Ftree (::1) 0.64ms >>> [I 09:10:46.017 NotebookApp] Kernel started: >>> df0dcc95-8356-4250-9f56-aaee5c314055 >>> >>> [I 09:10:46.033 NotebookApp] 302 GET >>> /notebooks/High%20Frequency/SW/DMI/vlaminck1.png >>> (::1) 1.73ms >>> >>> >>> >>> >>> On Thursday, December 6, 2018 at 3:32:06 PM UTC+1, Chris Holdgraf wrote: >>>> >>>> Hello! I you mention a sidebar - perhaps you were running "JupyterLab" >>>> before, and switched to the "Jupyter Notebook" interface accidentally? Try >>>> replacing everything after the "8888" with "lab". >>>> >>>> On Thu, Dec 6, 2018 at 3:28 AM <a.m...@inrim.it> wrote: >>>> >>>>> Sorry, I'm a newbie with Jupyter (on chrome, Linux), >>>>> but I run into a problem: >>>>> due to my inexperience, I often made this mistake: after inserting a >>>>> new line (above or below: A or B) I start writing immediately, believing >>>>> that I'm already inside the cell, and not still in (I think it's called) >>>>> command mode... >>>>> Needless to say, doing this I inserted a lot of commands without >>>>> intention. >>>>> Last time it happened, I noticed that 1) my notebooks are not tabbed >>>>> anymore, and 2) my left sidebar (files, running, commands...) disappeared. >>>>> I thought I entered without wanting into single document mode, but >>>>> ctrl-shift-enter does nothing. >>>>> >>>>> Can you help me please? >>>>> >>>>> Alessandro >>>>> >>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Project Jupyter" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to jupyter+u...@googlegroups.com. >>>>> To post to this group, send email to jup...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/jupyter/aefead89-720a-4a63-84d4-7ff6ed182f7f%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/jupyter/aefead89-720a-4a63-84d4-7ff6ed182f7f%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Project Jupyter" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to jupyter+u...@googlegroups.com. >>> To post to this group, send email to jup...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/jupyter/7c0daa86-ee9a-4b6b-a5ba-4e9467492d18%40googlegroups.com >>> <https://groups.google.com/d/msgid/jupyter/7c0daa86-ee9a-4b6b-a5ba-4e9467492d18%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- > You received this message because you are subscribed to the Google Groups > "Project Jupyter" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to jupyter+unsubscr...@googlegroups.com. > To post to this group, send email to jupyter@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jupyter/da5ff3f6-b57c-4907-b383-def135c2e495%40googlegroups.com > <https://groups.google.com/d/msgid/jupyter/da5ff3f6-b57c-4907-b383-def135c2e495%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Project Jupyter" group. 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