[SciPy-User] Hacking scipy and running the tests

Skipper Seabold jsseabold@gmail....
Mon Feb 25 13:51:27 CST 2013


On Mon, Feb 25, 2013 at 2:36 PM, Lars Buitinck <L.J.Buitinck@uva.nl> wrote:

> Hi all,
>
> I've submitted several patches to Scipy so far, am I've hit this
> problem every time: you can't import Scipy from within the source dir,
> so you can't run the tests without building and installing. But that
> takes a long time, and then when you edit a file, you either have to
> edit it in the installation and not forget to copy it back (without
> help from Git), or you must rebuild and reinstall.
>
> Is there a smarter way to do all this? How do the Scipy core developers do
> this?
>
>
AFAIK, you don't have to rebuild unless you're editing the C/Cython
sources. In this case I often use (or make) the existing subpackage
setup.py to only rebuild what I need.

If you've built the source in place

python setup.py build_ext --inplace

then you can just edit the python sources and run nosetests in the source
directory without rebuilding. Alternatively, I think you can use

python setup.py develop

which I believe builds in place and adds the source to your python path,
though I rarely do this.

I'd be interested to hear if there are better ways.

Skipper
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