[Numpy-discussion] Looking for the most important bugs, documentation needs, etc.

Benjamin Root ben.root@ou....
Tue Jul 10 08:04:38 CDT 2012

On Tue, Jul 10, 2012 at 6:07 AM, Ralf Gommers

> On Tue, Jul 10, 2012 at 11:36 AM, Ralf Gommers <
> ralf.gommers@googlemail.com> wrote:
>> On Tue, Jul 10, 2012 at 4:20 AM, Six Silberman <silberman.six@gmail.com>wrote:
>>> Hi all,
>>> Some colleagues and I are interested in contributing to numpy. We have
>>> a range of backgrounds -- I for example am new to contributing to open
>>> source software but have a (small) bit of background in scientific
>>> computation, while others have extensive experience contributing to
>>> open source projects. We've looked at the issue tracker and submitted
>>> a couple patches today but we would be interested to hear what active
>>> contributors to the project consider the most pressing, important,
>>> and/or interesting needs at the moment. I personally am quite
>>> interested in hearing about the most pressing documentation needs
>>> (including example code).
>> As for important issues, I think many of them are related to the core of
>> numpy. But there's some more isolated ones, which is probably better to get
>> started. Here are some that are high on my list of things to fix/improve:
>> - Numpy doesn't work well (or at all) on OS X 10.7 when built with
>> llvm-gcc, which is the default compiler on that platform. With Clang it
>> seems to work fine. Same for Scipy.
>> http://projects.scipy.org/numpy/ticket/1951
>> - We don't have binary installers for Python 3.x on OS X yet. This
>> requires adapting the installer build scripts that work for 2.x. See
>> pavement.py in the base dir of the repo.
>> - Something that's more straightforward: improving test coverage. It's
>> lacking in a number of places; one of the things that comes to mind is that
>> all functions should be tested for correct behavior with empty input.
>> Normally the expected behavior is empty in --> empty out. When that's not
>> tested, we get things like http://projects.scipy.org/numpy/ticket/2078.
>> Ticket for "empty" test coverage:
>> http://projects.scipy.org/numpy/ticket/2007
>> - There's a large amount of "normal" bugs, working on any of those would
>> be very helpful too. Hard to say here which ones out of the several hundred
>> are important. It is safe to say though I think that the ones requiring
>> touching the C code are more in need of attention than the pure Python ones.
>> I see a patch for f2py already, and a second ticket opened. This is of
>> course useful, but not too many devs are working on it. Unless Pearu has
>> time to respond this week, it may be hard to get feedback on that topic
>> quickly.
> Here are some relatively straightforward issues which only require
> touching Python code:
> http://projects.scipy.org/numpy/ticket/808
> http://projects.scipy.org/numpy/ticket/1968
> http://projects.scipy.org/numpy/ticket/1976
> http://projects.scipy.org/numpy/ticket/1989
> And a Cython one (numpy.random):
> http://projects.scipy.org/numpy/ticket/1492
> I ran into one more patch that I assume one of you just attached:
> http://projects.scipy.org/numpy/ticket/2074. It's important to understand
> a little of how our infrastructure works. We changed to git + github last
> year; submitting patches as pull requests on Github has the lowest overhead
> for us, and we get notifications. For patches on Trac, we have to manually
> download and apply them. Plus we don't get notifications, which is quite
> unhelpful unfortunately. Therefore I suggest using git, and if you can't or
> you feel that the overhead / learning curve is too large, please ping this
> mailing list about patches you submit on Trac.
> Cheers,
> Ralf
By the way, for those who are looking to learn how to use git and github:


Ben Root
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