Getting this very strange error when I am trying to load my ipython notebook. Never had it before, and I cannot to my recollection, remember having done anything silly with ipython:
Unreadable Notebook: /path/to/notebooks/results.ipynb NotJSONError('Notebook does not appear to be JSON: u\'{\\n "cells": [\\n {\\n "cell_type": "...',)
which is followed by
400 GET /api/contents/results.ipynb?type=notebook&_=1440010858974 (127.0.0.1) 36.17ms referer=http://localhost:8888/notebooks/results.ipynb
Save yourself a headache. Open your .ipynb in any online JSON validator and it will tell you which lines have issues. I used this one.
In my case, I am using GitHub to save and share my ipython files with my teammate. When there is a conflict in the code, I had to delete those lines indicating the changes in the conflicting code such as:
>>>>>>>>head
=============
and It works for me.
This happened to me as well. I opened my data.ipynb file using notepad and found out it was blank.
I managed to recover my file by going into the hidden ipynb_checkpoints folder and copying data_checkpoint.ipynb out into my working directory.
In my Mac OS terminal
cd .ipynb_checkpoints
cp data-checkpoint.ipynb \..
Thankfully the codes were preserved. Hope this helps!
I just had the same issue after upgrading from IPython 0.13 (ish) to Jupyter 4.
The problem in my case were a few rogue trailing commas in the JSON, for example the comma following "outputs" in:
...
"language": "python",
"metadata": {},
"outputs": [],
},
After removing the commas, Jupyter/IPython could again read the notebook (and upgraded it to version 4). I hope this helps.
The easiest way to recover corrupted Jupyter notebook files, whether it contains text or not (size = 0KB), is to go to the project folder and display the hidden files. Once the hidden files are displayed, you will see a folder named '.ipynb_checkpoints'. Simply open this folder and take the file you want!
Visual studio code procedure
This is my procedure that usually avoids me groping in the dark.
I installed a json parser validator like this one.
Open the file and save a copy as .json file.
Open the json and look for the errors.
Save it back to the .ipynb extension.
Usually, I manage to fix the errors quickly.
Jupyter autosaves in a specific way. It means You have accidentally closed the notebook before properly saving it.
You need to look for three things -
Search for <<<<<<< and delete those lines.
Search for ====== and replace those lines with ,.
Search for >>>>>>> and delete those lines.
It will work fine after this.
this can be changed to reformat your ipynb file to readable in jupyter notebook. check your other ipynb files(open in notepad) which are working fine with your jupyter notebook, check and compare at the end of the files in notepad. there you can reformat the file which is not working.
I had this issue from accidentally saving as .txt from github and solved by deleting .txt (leaving .ipynb instead of .ipynb.txt when downloading)
Yes, the best solution for me was I saved my notebook in HTML format, then opened it in Notepad ++ , delete the long repeated lines of output which were causing my notebook to grow to 45MB, once that cleared, Saved the file back into (.ipynb) format , and was able to opened it with no JSON error.
Hope that worked for others as well!
Got this error after conflicts while pushing my code to Github. The code present on the repo was old, and my changes were stashed. Notebook wasn't opening in either Jupyter and github repo. Following above comments, I searched for the part in my code which was giving JSON error,i.e. '<<<<<<<<<<<', '=======' and '>>>>>>>>>>' characters using an online json parser. Then I opened my .ipynb notebook in notepad++ and manually replaced these characters with blank string ''. After this, the notebook opened on my local Jupyter, and I also pushed the changes to Github.
I have changed by ipynb file encoding from UTF-8-BOM to UTF-8, and then it worked.
My native language is not English, but because this problem helped me a part, I came to feedback my solution.
The following is translated with translation software:
Fundamentally, the file format is messed up due to wrong closing. When opening, the correctness of the json format will be checked first, and an error will be returned if it is found to be wrong.
The mess in my file format is not <<<<< or ====== but the lack of commas.
Either way, it's best to use a piece of software to detect errors in the json syntax, and then manually fix it yourself.
The json website detection provided by the highest praise is available, but the detection errors are not complete, and may need to be detected-modified-detected-modified.
Also use vscode to open the file, vscode will prompt the location of the json syntax error, which is also incomplete and needs to be checked and modified multiple times.
The error location provided is more difficult to find. I use nodepad++, and the lower right corner can display how many characters are selected (standard, including line breaks). Then select from the first character until the destination position.
Although it's a bit stupid, the main reason is that I didn't find the relevant positioning method.
Clear all outputs.
Then copy the notebook.
If you use Jupyter-Notebook in VS code, just save it in VS code, close the file and try to open it again by accessing the browser.
on ubuntu 20.04, I have file String.ipynb. I had same problem because I coded ơ [ echo 'hello' >> String.ipynb ]. deleting 'hello' in String.ipynb -> I could open my notebook like normal.
how did I delete? [ nano String.ipynb ] * move to last line (hello) * -> delete it.
I hope my answer help you :D
you will see this error may be because, you were getting merge conflict in .ipynb file. because of that git adds >>>>>>>> HEAD thing in .ipynb file which makes is unreadable.
To overcome this issue open .ipynb file in vim editor and then remove the incoming changes or your changes as per your use case.
vim <your-.ipynb-file-path>
To remove incoming changes remove content between these lines<<<<<<<<<< HEAD ==============. Note:- remove this line as well >>>>>>>>>>>> this line.
to remove your changes remove content between these lines ============== >>>>>>>>>>>. Note:- remove this line as well a <<<<<<<<<< HEAD
I had the same issue after git merge while using VS Code and Jupyter extension.
VS Code would not open the notebook after the merge conflicts were highlighted in the notebook JSON by git (e.g. <<<<<). One way around it was to highlight the changes and accept one by one using the file viewer in the VSCode git interface.
Alternative that worked for me was to rename the file to .json so that it would open and then search for each instance of <<<<< and accept the incoming change.
I'm trying to setup limeJS, the issue is the Internet connection is a problem. I had closure library, box2d, closure compiler and closure templates downloaded separately as .rar files, but I can't find a guide anywhere to set it up like this, everyone just uses(and with reason!!!) the python bin/lime.py init command to get it working. I managed to figure out(yay!) how to setup box2d and closure library but what about the other two?
My laptop is running 64 bits Windows 7. Any help appreciated
All I need is an advice on directory structure, like where to drop the compiler.jar and soy templates .js files, so that when I run the update/create command it doesn't try to download the compiler or templates like it does right now.
I got it working, after taking a quick look at the lime.py file it told me everything I needed, for example both the SoyJs templates file and the compiler need to be in the /path/to/lime/bin/external folder and for example, the lime.py file was expecting a compiler file named compiler-dateOfLatestCompiler.jar instead of compiler.jar.
In general, If you have LimeJS built up in one machine using Python and all, you can just copy paste the whole package anywhere you want and use it just as ususal.
You don't need network once you have all the files/codes for Lime is downloaded.
Infact, you dont even need python for normal development tasks(Python is required to build your js file once you complete development though)
There is an excellent package to preview markdown written using sublime text. I wanted to know how I might modify it, or perhaps use it as the basis for writing one that could process multi-markdown.
I'm using Linux (Ubuntu) and I'm currently calling multimarkdown in the terminal on each file.
One of the issues I think I might face is that multimarkdown refuses to parse an open file for some reason.
Any thoughts on how I might begin this or if an alternative solution exists would be very gratefully received.
There is a MultiMarkdown option in the syntax list - View > Syntax > Markdown > MultiMarkdown. Isn't that working? By the way the syntax (and almost any other) files are in packages folder of Sublime Text 2. This is the syntax file:
/Users/[username]/Library/Application Support/Sublime Text 2/Packages/Markdown/Markdown.tmLanguage
And MultiMarkdown file is in the same directory.
I'm intrigued by your statement that "multimarkdown refuses to parse an open file". Can you provide more information, or email me, or open an issue on github? MultiMarkdown doesn't check to see whether a file is open or not --- it simply reads the file and processes it. So if there's a problem, then the OS is not allowing MMD to proceed for some reason...
I don't have Sublime Text installed on Ubuntu (I generally use a command line only version of Ubuntu for testing MMD), so I can't test this situation exactly. I haven't had any other reports of difficulties parsing files (open or not). I don't have any trouble with Sublime Text 2 on Mac OS X and MMD.
As an alternative, you could try using one of the support scripts (e.g. mmd if you want MMD->HTML) and see if that has the same problem with open files.
PS> Are you using the latest build of MultiMarkdown, e.g. 4.2+?? (Though it shouldn't change anything related to open files)
I'm a newbie working on OpenACS architecture and need to upload a .xml file through TCL. I went through the documentation and tried to work around with the code mentioned here: http://wiki.tcl.tk/13675
However, I'm unable to understand the code and the copy-paste won't work. Could someone please suggest a easier working way to upload a file in TCL? A working code would be of great help.
I need to upload a file through a HTTP form(with input type file parameter) and I'm asking for server-side code.
OpenACS already has file uploading built in (assuming you're using the OpenACS form builder aka ad_form, template::form - it has many names!). The specific widget you need to use is template::widget::file
A worked example is in the General Comments package (see file-ae.adp, file-add.tcl and file-add-2.tcl):
http://cvs.openacs.org/browse/OpenACS/openacs-4/packages/general-comments/www/file-ae.adp?r=1.6
http://cvs.openacs.org/browse/OpenACS/openacs-4/packages/general-comments/www/file-add.tcl?r=1.4
http://cvs.openacs.org/browse/OpenACS/openacs-4/packages/general-comments/www/file-add-2.tcl?r=1.6
Specifically, look out for the 2 ad_page_contract parameters, and follow those variables down through the code:
upload_file:notnull
upload_file.tmpfile:tmpfile
Re-inventing network protocols is not so much worth in most cases, so I'd like to recommend using proven community libs. From my personal experience, I'm pretty glad to deal with libcurl (see http://curl.haxx.se/libcurl/tcl)
I need to add some code to the of several html contained in a folder on my desktop. How can i do that?
I am using a prototyping tool (Axure) on Mac and I want to add some html meta tags to the generated pages. These pages can be overwritten every time I generate the prototype. What I need is a sort of script that I can launch after re-generating the prototype, to reinsert the code. There is something for windows but it doesn't work on Mac: http://joshuamorse.com/2009/01/14/axure-protonotes-an-alternative-to-protoshare/
thanks
This is a very simple problem to solve using a shell script.
If you are not familiar with scripting, then check out the Automator program built-in to OS X.
This provides a "visual" way of building automation workflows.
This is the basic steps that your workflow will need to perform.
Find the files that need updating.
For each file
Open the file using TextEdit
Tell TextEdit to Find the Head element and replace with the new Head Element that includes the script
Save the file.
Repeat
How about a simple find/replace in multiple files using something like this:
http://search-and-replace.en.softonic.com/mac
If you are able to create some sort of 'dummy' tag in Axure, you could use that as the 'find' that you could replace with your meta tags.
That seems to be a simple way to do what you want.