Is there an easy way to convert an ipython notebook to plain python without using ipython itself (i.e. not using ipython nbconvert --to=python ...)?
Background: I want to test if there is a syntax error in various ipython notebooks using travis-ci. However, installing ipython from source takes too long and the ubuntu packages are outdated.
I wrote a simple script that does the conversion. It's probably not fool-proof but works for me. I'd still be happy to hear about a better solution.
Link to script: https://gist.github.com/hannorein/8423ad75547f37bba228
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I apologize if it is a trivial question, but I searched and I could not find the answer. My situation is the following:
I have access to a server through ssh tunnelling. The server has Julia installed but not jupyter.
My machine has both, and my code is mostly in jupyter notebooks and I wish to keep it that way.
I wish to be able to run my code on a julia kernel on the server, but editing from a Jupyter interface/ IJulia locally.
I have found several guides on how to launch jupyter from remote, but they do not apply since the server does not have jupyter installed. Similarly, I am aware I could convert my code in a julia script and run it, but I would rather keep the convenience of a notebook for editing.
Is this even possible to do?
Any help is very appreciated!
All my install for python were working pretty well since soon. Now, I have a weird issue that generates import errors for some of my Python scripts and when using Ipython those import performs as expected.
This issue does not depend on the working dir (tested this several times with the same result). And I didn't change anything in my .bashrc regarding PYTHONPATHs.
So this might be a noob question, but is there an option in Ipython to display everything Ipython is doing when I run a command, so that I can track which is the package Ipython succesfully imported?
The packages I have trouble with are actually yaml, matplotlib cloud Image. Is it possible that an update from 2.6 to 2.7 is responsible for that? (I work on OSX Lion and most of the packages are installed via macports and updated using the upgrade outdated command).
As I think I can probably fix this myself with the command I asked for, don't bother seeking further for package compatibility or anything if you got the Ipython command that might suits me.
The difference of imports between python and ipython resulted from a cross defined python reference library (when installing most of the python libraries with macports and some without any known ports with other package managers).
Reinstalling the whole python libraries using the process described in http://astrofrog.github.io/macports-python/
corrects the issue and it is preferable to install manually the libraries that don't have any known ports (for instance with a setup build/install process).
I often use ipython with vim (vim-ipython plugin). It connects to ipython via ZMQ, so I need to run ipython console. I don't see any purpose to not use ipython console even if I don't use ZMQ features, so I want ipython to start ZMQ-based console without typing console. I know, that this problem could be partly solved with bash aliases, but I think that I would have problems with launching qtconsole or notebook.
We don't provide any way to make ipython console the default, and we're probably not about to, as it gets much less field testing than the regular terminal IPython. I'd recommend you just alias another convenient name to it.
I am experimenting with the music21 library, in preparation for a Machine Learning project that involves genre classification and categorization. I and following some tutorials available here. I am using MuseScore as my MusicXML program, and I am trying to run the whole thing from iPython.
Although I can run the some of the turtorials from the terminal, some elements don't seem to run well from inside iPython. For example:
In [3]: sBach.show()
Out[3]: <music21.ipython21.objects.IPythonPNGObject at 0x10da0aa10>
The line above shows that the PNG object is created, but not displayed. The expected output for 3 above is the following:
Experimenting with the following iPython command, I get a placeholder for an image, but not image.
In [6]: %load_ext music21.ipython21.ipExtension
In [7]: sBach.show()
I can't find any problem with my MusicXMLPath. This tutorial refers to the use of musc21 with Anaconda, but all my developments is done with Enthought, so I prefer not to run another virtual environment to use music21 with iPython.
Is there any way to run music21 in an Enthought/iPython notebook?
I have been grappling with this issue myself. ... Have you set your musicxmlPath in music21? If you have not, it's done via environment.set(key, value). You can query for available keys with environment.keys(). I hope this isn't too simple an answer, but it cleared up the problem for me.
This should be in the iPython music21 documentation somewhere, my apologies: iPython in music21 requires Lilypond to be installed for images to be generated within the notebook itself. There hasn't been (and won't be until MuseScore 2.0 is released) a way using MusicXML to generate PNG images of scores directly.
Edit: 2015 July; music21 2.0 w/ MuseScore 2 will generate the PNG images with MuseScore if it is installed and fallback to Lilypond if it is not installed.
If not yet tried, some steps to isolate the cause of the problem:
1) Update to the latest Canopy (Edit: currently 1.4.1) (might help this, will help generally, won't hurt).
2) Change the Pylab backend in Canopy's IPython shell to "Inline (SVG)", via Preferences / Python. (The default Qt backend in that shell conflicts with music21's use of the tkinter library.)
3) Test your script in that shell rather than in the notebook.
4) Ensure that Canopy User Python is your default Python in a Terminal window, as described here.
5) Test your scripts inside of plain ipython terminal (from Terminal, type ipython).
6) Test in ipython terminal in pylab mode (ipython qtconsole --pylab=inline).
7) Test your scripts inside of ipython notebook running in a regular browser (from Terminal, type ipython notebook, and/or ipython notebook --pylab=inline).
Had similar issues before. It's the same problem when people try to use plot function in ipython/jupyter notebook. You need to call
%matplotlib inline
For me the issue was solved by uninstalling the snap version of musescore and installing it from ppa:mscore-ubuntu/mscore3-stable via https://launchpad.net/~mscore-ubuntu/+archive/ubuntu/mscore3-stable
I know there is the script magics in the ipython notebook for running code in other languages. See for example http://nbviewer.ipython.org/url/github.com/ipython/ipython/raw/master/examples/notebooks/Script%20Magics.ipynb.
And I know you can run Scala in script mode. See, for example http://www.scala-lang.org/old/node/166.
But I couldn't figure out if there was a way to get the ipython notebook to run scala code.
Second google answer for "Ipython scala" search yield IScala notebook announce.
OP has asked about running scala code in the ipython notebook, not if there's an ipython equivalent for scala. he is aware he can run it with magics as any other script.
a better answer, though still not what OP has asked, is a project for running scala in the similar fashion of notebooks in a web page https://github.com/Bridgewater/scala-notebook