Try completely removing the numpy, scipy and scikit-learn folders, then
``pip install numpy scipy``, then ``pip install scikit-learn``.
On 02/25/2016 12:34 PM, Laura Fava 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.
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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