The current state of Codenode Re: [codenode-devel] zope.interface and other newbie questions
Alex Clemesha
> Apologies if this is the wrong place to ask:
This is definitely the right place to ask :)
> 1. What is codenode? Is it the notebook part of sage with the math
> removed? (The reference to sage on the homepage confused my little
> brain.)
Codenode is a pure Python web application that allows "programming
interactively, in a web browser".
It is a "generalized" notebook, that run can many "backends", like
Python or Sage, etc.
Sage is math software, that comes with a notebook. The Sage notebook
is pretty similar from
first glance to Codenode, but is pretty different behind the scenes,
and is coupled to Sage (in practice).
There is also Sympy Gamma, which is another notebook, being produced
by the Sympy devs.
There is also a notebook from http://femhub.org, that is referred to
as a "online lab", and is
a mixed of the Sage Notebook / custom patches / and maybe other stuff,
I'm not sure.
There was a Ipython Notebook, but that seems to have died a while back.
--
The aim of Codenode is to make a "generalized notebook" that could be
used by all these
projects, but in practice it turns out that is an *extremely* large
amount of work.
The above projects have been going on for several years, and there is
tons of repeated work, and
it is a mess, in general. Here in lies the world of open source :-)
There has not been significant work on Codenode recently, as the main
people involved are
finding it very hard to balance working on such a large/ambitious
project right now with other commitments.
On one hand, this makes me very sad that I can not spend all my time
on Codenode, but thus is life.
I hope to return to working on Codenode when I can.
My recommendation is to focus on the Sage notebook right now, it is
the most usable.
-Alex
>
> 2. I don't see instructions for starting codenode. After some
> hunting I did
> codenode-admin init codenode
> cd codenode
> codenode-admin run
>
> Is that the way?
>
> 3. I'm on Kubuntu 9.10. I installed using virtualenv and pip, my
> first experience with virtualenv and pip. After installing, and
> trying to start as above I get an exception:
>
> (codenode)gap@gap-laptop:~/Documents/python/virtualenv/codenode$
> codenode-admin run
> Traceback (most recent call
> last):
> File "/home/gap/Documents/python/virtualenv/codenode/bin/twistd",
> line 18, in <module>
> from twisted.scripts.twistd import
> run
> File "/home/gap/Documents/python/virtualenv/codenode/lib/python2.6/
> site-packages/twisted/scripts/twistd.py", line 11, in
> <module>
> from twisted.application import
> app
> File "/home/gap/Documents/python/virtualenv/codenode/lib/python2.6/
> site-packages/twisted/application/app.py", line 7, in
> <module>
> from twisted.python import runtime, log, usage, failure, util,
> logfile
> File "/home/gap/Documents/python/virtualenv/codenode/lib/python2.6/
> site-packages/twisted/python/log.py", line 17, in
> <module>
> from zope.interface import
> Interface
> ImportError: No module named zope.interface
>
> out of curiousity, I did
> $ pip install zope.interface
> Requirement already satisfied: zope.interface in /usr/lib/python2.6/
> dist-packages
> Requirement already satisfied: setuptools in /usr/lib/python2.6/dist-
> packages (from zope.interface)
> Installing collected packages: setuptools,
> zope.interface
> Successfully installed zope.interface
>
> but codenode still can't find it.
>
> any ideas?
>
> -gary
>
> --
> http://groups.google.com/group/codenode-devel?hl=en
> http://codenode.org
--
Alex Clemesha
clemesha.org
Ondrej Certik
Too sad, that you don't have time to work on it. In my experience, one
has to use the project for the daily research, otherwise it's hard to
develop it in the long term.
Ondrej