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martin-saurer / jkernel

Jupyter Notebook / J Integration
GNU General Public License v3.0
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Error when starting kernel #2

Closed DaneWeber closed 8 years ago

DaneWeber commented 8 years ago

I get the following error when attempting to start the jkernel:

C:\Users\danew\Anaconda3\python.exe: Error while finding spec for 'jkernel.jkernel' (<class 'AttributeError'>: module 'jkernel' has no attribute '__path__')

C:\Users\danew\Anaconda3\Lib\site-packages\jkernel\qjide.cfg contains the following line: JInsFol = 'C:\\Users\\danew\\Google Drive\\Code\\j64-804'

martin-saurer commented 8 years ago

@Fluffums Unfortunately I cannot reproduce this issue at this time, neither on Windows, Mac, or Linux. There are a lot of differences between @adrian17's jkernel and my version. Have you tried the following command: python -m jkernel.jkernel If this gives you the same error message, there must be something with the anaconda installation. Do you have both jkernels installed @adrian17 and my version? May be they disrupt each other (or just mine ;-)

Pascal-J commented 8 years ago

a related question, and possible resolution, could this be renamed qjkernel? Can we do this manually?

starting jupyter notebook from the Lib/site-packages/jkernel folder does show "J" as a notebook. But kernel dies with "error finding jkernel.jkernel spec"

martin-saurer commented 8 years ago

@Fluffums @Pascal-J Finally I can reproduce this issue. To me it looks it has something to do with the python search path (sys.path).

If you cd to: ...\Anaconda3\Lib\site-packages\jkernel or: ...\Anaconda3\Lib\site-packages\ and run: python -m jkernel.jkernel you will get the error: Error while finding spec for 'jkernel.jkernel' (<class 'AttributeError'>: module 'jkernel' has no attribute 'path')

Try the same from your home directory: C:\Users\Martin (for example) It should work now.

Starting: jupyter notebook from C:\ will also not do. You will get a: 404 : Not Found in your browser (not jkernel related). It seems that the startup directory has some (strange) effects, when starting jupyter notebook.

@Pascal-J Sure, you may rename the jkernel stuff to qjkernel (or what ever you wish ;-) as long as you rename all the related stuff consistently.

DaneWeber commented 8 years ago

Naming suggestion: how about "Jlang"?

Just running jupyter notebook from C:\Users\danew still produced the error. I'll try going through fresh install steps on a clean Windows machine to see if I'm consistent.

I also just installed this on a fresh Linux machine and the kernel is dying for another reason...

martin-saurer commented 8 years ago

@Fluffums That's weird! I run this stuff on Mac, Windows, Linux, and everything works right out of the box. For me, it's a bit like fishing in troubled waters ;-)

My OS-Environment: Windows: Windows 10 32/64-bit English MacOSX: 10.11.4 Linux: Ubuntu 14.04 64-bit

Latest Version of Anaconda3, with all the updates, but no additional packages from outside the Anaconda distribution.

I'm thinking about renaming jkernel to Jlang ...

reckbo commented 8 years ago

FYI Martin's suggestion of starting the notebook from my home folder resolved this error for me (I'm on a Mac).

DaneWeber commented 8 years ago

@martin-saurer - Wow. I finally got around to trying this again, and I got it working. I ran into a similar bug as before, but figured out it was due to a typo in the J install path in qjide.cfg. If I run into new issues using your JLang kernel in Jupyter, I'll open a new issue. Thank you for doing this!