[pypy-dev] numpypy include files

[Antonio Cuni]

Ok, thank you, I fixed&committed.
About me being the first to report: actually, I think it's because there is
a lot of confusion around about numpy+pypy.

I started to investigate this because I saw by chance a colleague switching
from installing numpypy to installing numpy. When I asked, he just said
that his C extension did no longer work with numpypy on newer versions of
PyPy. And as a result his code ran slower (because for his particular
workload numpypy is better).

So, lesson learnt:
  - people are confused about this numpy vs numpypy thing, Also, the fact
that the numpypy repo is called "numpy" does not help, as they tend to
think it's just an outdated copy of the offical numpy.

  - it's hard to find docs about this: the only docs I found are
http://pypy.org/download.html which is not the first place I'd look at :)

So: what is the current status of numpy vs numpypy? Is the latter still
maintained or is it slowly dying?

If numpypy is still relevant, I propose to hack things so that:

1) we have a dedicated page about numpy either on pypy.org or readthedocs

2) when you execute pip install numpy, it installs the upstream numpy but
also displays a link to that page

3) pip install numpypy works as well (and displays the same link).

What do you think?


On Wed, Jan 18, 2017 at 9:05 PM, Matti Picus <matti.picus at gmail.com> wrote:

> On 18/01/17 20:38, Antonio Cuni wrote:
>
>> Hello Matti,
>> I am having some troubles with the latest pypy and numpypy: basically,
>> numpy.get_include() returns the wrong directory.
>>
>> I investigated a bit and I think the culprit are these two commits:
>> https://bitbucket.org/pypy/pypy/commits/ad36a29d0fcc
>> https://bitbucket.org/pypy/numpy/commits/26e09b343f
>>
>> Probably it's just a typo in the numpy commit, which specify '_numpy'
>> instead of '_numpypy'.
>>
>> However, before committing the fix I wanted to ask you, to make sure I am
>> not missing anything important :).
>>
>> ciao,
>> Anto
>>
> Indeed, the changeset https://bitbucket.org/pypy/numpy/commits/26e09b343f
> seems to be an error, should be _numpypy. Interesting that you are the
> first to report it, I guess not many people try to build c-extensions with
> numpypy
> <https://bitbucket.org/pypy/numpy/commits/26e09b343f>
>
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