On Thu, Feb 25, 2016 at 12:34 PM, Laura Fava <laura.f...@outlook.com> wrote:
> I installed all the packages using pip install. I already had numpy and
> scipy installed, but when installing scikit-learn didn't work, I
> uninstalled scikit-learn, numpy and scipy, then reinstalled scipy, which
> reinstalled numpy, then reinstalled scikit-learn. When that didn't work, I
> uninstalled the three packages and tried doing them together as pip
> install -U numpy scipy scikit-learn. That didn't work either.
>
you need to check which version of numpy scikit-learn is compiled against,
and get a numpy version that is not older.
At least that's the most common source for that error message
http://stackoverflow.com/questions/17709641/valueerror-numpy-dtype-has-the-wrong-size-try-recompiling/18369312#18369312
Josef
>
> I don't want to move to Anaconda, because I have a number of other
> packages I use already set up via pip and would prefer to continue on that
> route.
>
>
> ------------------------------
> *From:* Andreas Mueller <t3k...@gmail.com>
> *Sent:* Thursday, February 25, 2016 8:27 AM
> *To:* scikit-learn-general@lists.sourceforge.net
> *Subject:* Re: [Scikit-learn-general] ValueError: numpy.dtype has the
> wrong size, try recompiling
>
> How did you install numpy, scipy and scikit-learn?
> I guess using wheels for all (and not compiling anything) should work.
> Or use anaconda.
>
> Also make sure all the libraries you are installing work in the same
> python environment.
>
> On 02/25/2016 10:40 AM, Laura Fava wrote:
>
> Hi,
>
>
> I have installed scikit-learn, but I cannot import it because I am
> receiving the following error:
>
>
> $ nosetests -v sklearn
>
> Failure: ValueError (numpy.dtype has the wrong size, try recompiling) ...
> ERROR
>
>
> ======================================================================
>
> ERROR: Failure: ValueError (numpy.dtype has the wrong size, try
> recompiling)
>
> ----------------------------------------------------------------------
>
> Traceback (most recent call last):
>
> File "/Library/Python/2.7/site-packages/nose/loader.py", line 407, in
> loadTestsFromName
>
> module = resolve_name(addr.module)
>
> File "/Library/Python/2.7/site-packages/nose/util.py", line 312, in
> resolve_name
>
> module = __import__('.'.join(parts_copy))
>
> File "/Library/Python/2.7/site-packages/sklearn/__init__.py", line 57,
> in <module>
>
> from .base import clone
>
> File "/Library/Python/2.7/site-packages/sklearn/base.py", line 11, in
> <module>
>
> from .utils.fixes import signature
>
> File "/Library/Python/2.7/site-packages/sklearn/utils/__init__.py", line
> 10, in <module>
>
> from .murmurhash import murmurhash3_32
>
> File "numpy.pxd", line 155, in init sklearn.utils.murmurhash
> (sklearn/utils/murmurhash.c:5029)
>
> ValueError: numpy.dtype has the wrong size, try recompiling
>
>
> ----------------------------------------------------------------------
>
> Ran 1 test in 0.001s
>
>
> FAILED (errors=1)
>
> My operating system is OS X Yosemite version 10.10.5.
> numpy version: 1.10.4
> scipy version: 0.17.0
> scikit-learn version: 0.17.1
>
> I used pip install -U scikit-learn.
>
> I've tried uninstalling and reinstalling scipy (and numpy) and
> scikit-learn, but I still get the same error. I appreciate any help in how
> I can get a working installation of scikit-learn.
>
> Thank you,
> Laura
>
>
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