I am a novice in the use of Python and I am using PandasBiogeme to estimate discrete choice models.
My issue is related to the Jupyter notebook. Usually when I wish to use it, I select it from the start menu of Windows 7 and automatically a new tab opens up in Chrome.
Yesterday, actually by not knowing exactly why, I logged out from Jupyter notebook and today when I launched it from the start menu the following error message appeared:
I thus decided to reinstall Anaconda, and PandasBiogeme and to update both of them.
Now when I wish to open Jupyter notebook from the start menu a prompt menu appears and suddenly disappears. Therefore I need to open the Anaconda Powershell and type
jupyter notebook
Yet, when I do this I receive the same error message I reported above
I typed in the second URL and I was then able to work again.
Yet, when I close Jupyter notebook and try to launch it again the same problem arises and I have to insert again 'a' token. I wrote 'a' token, because if I select by chance the token reported at the following URL (which has nothing to do with my work)
https://jupyter-notebook.readthedocs.io/en/stable/security.html
namely, this one:
http://localhost:8888/?token=c8de56fa4deed24899803e93c227592aef6538f93025fe01
and then Jupyter notebook works and I can carry out my estimation.
I read different posts on the possibility to set a password to avoid problems related to tokens, but only the first time I inserted the token I had the option to insert a password in in a html page, but I decided not to do it. Now I believe it could be the case.
This is something that happened overnight, without, I believe, my doing anything specifically.
This issue is driving me crazy and I would be thankful if any of you had a potential suggestion.
Many thanks.
Marco
Related
I am running jupyter via anaconda in a web browser on windows. In nbextensions: I have tried,
calico-spell-check,
calico-spell-check,
spellchecker/main.
All highlight misspelled words fine but none suggest correct words.
Am I missing a set up step, my google fu is letting me down. Is there another extension that works as expected. I find it hard to believe that there is no true spell checker / corrector extension for a system designed around presenting of data, I must be missing a set up step or fundamental understanding of the system.
From what I've seen, such as this you just get highlighting in the classic Jupyter notebook interface. The limitations of what can be done with that interface is one of the reasons the current path forward for Jupyter development is JupyterLab and efforts based on similar underlying modern machinery, i.e., notebook version 7 is intended to look like the classic notebook interface while being based on the more modern components.
JupyterLab has spell check with suggestions available already added for editing markdown cells and editing markdown documents, see here. You can try it out in your browser now by going here and clicking launch binder to bring up a session where the extension is already installed and working.
For code, JupyterLab already has a nice autocomplete implementation that you'll get when you start typing a word and press tab to see suggestions. Additionally, some ideas have been offered for extending the current spell checking extension for JupyterLab to handle code cells, see tracking for this issue.
Every time I open Jupyter Lab from Anaconda, I receive the following error: '_xsrf' argument missing from POST.
I am using Google Chrome on Windows 10.
I've followed the suggestions from the other posts, e.g. copy and paste the URL into different Chrome tab and refresh the page.
It seems like my sessions are not properly closing, even if I terminate all kernels for that specific session.
I've closed all Jupyter Lab sessions by using jupyter notebook stop <session_number>. Nothing has changed.
Someone has suggested revising the configuration. However, I am unclear as to what problems a reconfiguration will cause downstream.
One last thing, I do NOT encounter this problem when running Jupyter Notebook. The error only occurs when I open Jupyter Lab.
Unfortunately, I made a change to the Jupyter Lab settings recently. Jupyter had never been able to access the remote R help server. Usually this was never an issue because most help files are displayed in Jupyter. The way help is called on a function or method is typing: ?question. The "question" being the name of an R function or method. Ex. ?plot
Infrequently one of the R packages will not list its help in Jupyter and instead try to open the remote R help server. This has never worked in the past. The tab for a remote server never opened. This has never really been an issue until recently. Recently I decided to "fix" this issue and spent a good deal of time looking up the solution. I made this "fix" and Jupyter began working properly to open the remote R help server. But the fix is a problem that is way too obnoxious.
Each time I type the question mark in Jupyter, Jupyter causes the browser to open a new tab for the remote R help server. It is impossible to type fast enough after typing typing the ?. Once the ? is typed, the typing is interupted while the browser opens a new R server help website. As soon as returning to the typing, another browser tab opens and interrupts the typing .
It is impossible to finish typing the name of a function after the ? without having multiple interruptions to the typing while multiple new windows are opened in the browser at the R help server website. By the time I've finished typing: ?ppp, there will the 5 interruptions and new browser tabs opened. If I typed slowly, there may be 10 - 12 interruptions and 10 new tabs opened at the R help server.
How to prevent Jupyter from trying to access the remote R help server every time the ? is typed when looking up a description of a function? How to get back to that happy place I had before I'd made whatever change that caused this nightmare to happen?
Solved my own question.
This issue had nothing to do with R. I assumed I had changed a configuration in R, but that was not the case. This was an issue I had caused when I had changed a setting in Jupyter lab.
I can say with certainty this issue was definitely caused when I changed the "Contextual Help" setting under the Commands tab in Jupyter. This setting is related to the Contextual Help selection found under the Help tab. And this setting was causing multiple R help server tabs to open in the browser after I typed: ?
Upon rediscovering this Jupyter setting today I recalling that I had been down this path before. I selected "Contextual Help". Jupyter auto restarted and the issue went away. I can gladly say that I can perform search again for the description of an R function: Ex ?plot ,and receive the description of this function within Jupyter the same as before. I no longer have the issue of the browser opening or multiple new tabs at the remote R help server after typing ?
This is an extremely basic question. At some point I accidentally closed the window containing my Jupyter notebook tabs. It's gone from my 'recently closed tabs' in Chrome. Is there some way that I can reopen the notebooks corresponding to the currently active kernels?
In case it makes a difference, they are julia kernels, and I started the notebook server by typing notebook() in a julia REPL session.
If your server is still running, you can still see all previously opened notebooks:
Access your dashboard via the browser (usually http://localhost:8888 by default).
Select the Running Tab (as mentioned by #Quang Hoang).
Example
As the same happened to me and the first google result was this entry, here is some additional information:
When following the url posted above (http://localhost:8888), you may be asked for a password or token, the latter of which you will find either in the Jupyter terminal window (also providing you with the direct notebook url):
Jupyter terminal screenshot
, or, if using Anaconda, by opening the "Anaconda Prompt" and entering jupyter notebook list.
sorry if this question is not as detailed and focused as it should be.
I am a Linux user (so no admin privileges of any sort) and just installed Anaconda3 from here and followed the instructions.
Note that my Linux machine is not connected to the internet, so I had to transfer the file through other means and just run bash Anaconda... as instructed in the Continuum site.
I have then succesfully launched IPython and tried to plot inline, without problems. However, when I tried to use plotting in windows, I got this kind of output from the terminal:
X Error: BadDrawable (invalid Pixmap or Window parameter) 9 Major opcode: 62 (X_CopyArea)
And the created graph window was just blank.
I then tried to start Spyder and basically saw the same behaviour: a lot of those errors reported above, and the Spyder window just popped up blank.
Google search for the error gives results reported for Qt, which makes sense since when plotting "offline" (as opposed to inline) then QtAgg is used.
However, I have no clue as to where to look for the version of these libs, how to install/compile new ones, whether that is really the issue or not. I am just to ignorant about Linux.
Anybody can hint on what to look for and how to try to debug this behaviour?
I had the same error. What worked for me is to add this line in /etc/environment.
sudo nano /etc/environment
Add this line
QT_X11_NO_MITSHM=1
Source : https://github.com/P0cL4bs/WiFi-Pumpkin/issues/53#issuecomment-309120875
Note that in my case the fix didn't take effect until I rebooted my machine.
you may simply run on the terminal:
export QT_X11_NO_MITSHM=1
I had this same error, so I'll tell you what worked for me.
I think it is a permissions issue, based on the following:
I was logged in through a VNC server window through my account, but within the VNC server was setting up a user profile for "user2". In a 'user2' console I installed anaconda in user2's directory. When I typed spyder in the user2 console, I got the exact error you describe. I guessed the VNC desktop didn't like user2 trying to open a window on user1's profile. I then logged out of my VNC server window, logged into the user2 vnc server window, and in a console typed 'spyder' and it opened perfectly.
I think for some reason it is trying to open but is installed in a directory that you don't have permissions for or trying to open in a window that you don't have access to.