Updating scipy in sage

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One thing you could try to install a newer scipy is to download scipy and follow the instructions for installation, but instead of doing "python setup.py ...", do "sage -python setup.py ..." (i.e., instead of calling python, call sage -python, which will use Sage's version of python).

I had this problem and was able to use "from matplotlib.mlab import griddata". I'm playing with portable python which appears to have:

matplotlib version 0.98.52 scipy version 0.7.0.dev5180 and numpy version 1.2.1

The matplotlib.mlab version of griddata accepts exactly 5 arguments like this: zi = griddata(x,y,z,xi,yi) and uses delauney nearest neighbor triangulation.

Hope that helps!

You can try something very dirty that will probably work. Sage's spkg are stored in spkg/standard. I assume you have a tarball for scipy-0.9.

1) go to spkg/standard

2) tar xvfj scipy-0.8

3) cd scipy-0.8

4) rm -rf src/

5) mkdir src

6) untar the scipy-0.9 tarball

7) copy the content of the scipy-0.9 folder in the src folder

8) going back to spkg/standard

9) mv scipy-0.8 scipy-0.9

10) tar cvf scipy-0.9.tar scipy-0.9

11) bzip2 scipy-0.9.tar

12) mv scipy-0.9.tar.bz2 scipy-0.9.spkg

13) cd ../..

14) sage -f scipy-0.9

15) wait for scipy-0.9 to install (cross fingers)

16) start sage (no need for sage -b scipy is a runtime dependency not a build time one)

17) enjoy scipy-0.9 in sage - hopefully

There are a couple ways to do this, I think.

• My preferred way is that you try to upgrade the spkg (Sage package) currently in Sage (0.8) to the next release (if it's stable) and then begin the review process. Instructions for how to do this are here in the developer guide.

• Since that is probably more work than you would like just to use it, I think you should be able to use a separately downloaded Scipy from within your Sage by importing it. I'm not quite sure where it would have to live, nor whether you'd have to name it something different. But since Sage is essentially Python-based, you could at least try sage: sys.path.append('/path/to/my-scipy-dir'); import my-scipy or something like that. If this is totally wrong, undoubtedly someone will let me know.