trouble importing skllearn

Question

Hi i have installed the Scikit-learn but i keep getting error msgs when i try to import the sklearn module. it shows the following msg. anyone knows what's going on?

import sklearn
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "sklearn/__init__.py", line 31, in <module>
    from . import __check_build
  File "sklearn/__check_build/__init__.py", line 46, in <module>
    raise_build_error(e)
  File "sklearn/__check_build/__init__.py", line 41, in raise_build_error
    %s""" % (e, local_dir, ''.join(dir_content).strip(), msg))
ImportError: No module named _check_build
___________________________________________________________________________
Contents of sklearn/__check_build:
__init__.py               __init__.pyc              _check_build.c
_check_build.pyx          setup.py                  setup.pyc
___________________________________________________________________________
It seems that scikit-learn has not been built correctly.

If you have installed scikit-learn from source, please do not forget
to build the package before using it: run `python setup.py install` or
`make` in the source directory.

If you have used an installer, please check that it is suited for your
Python version, your operating system and your platform.

ran the setup.py script in a osx 10.6.8 after installing the xcode in the snow leopard cd, gfortran, numpy 1.8 and scipy. — user3319895, May 10 '14 at 15:38
I've tried via apt-get and it works fine. have you installed `python-dev` package in your system? — mortymacs, May 10 '14 at 15:49
I dont think so. I was using the pre installed python version but i changed to the 2.7 one. What is the python-dev package? — user3319895, May 10 '14 at 15:58
`python-dev` package will install many C headers like `python.h` that many packages have been written in C for python can use them. — mortymacs, May 10 '14 at 16:06

mortymacs · Accepted Answer · 2014-05-10T16:31:46.650

As you can see in your errors: ImportError: No module named _check_build in that directory it has .c file and it never compiled.

If you check this link you will see many parts of scikit-learn has been written in C.

So for installing this kind of packages , you need to install python-dev package in your system.

python-dev package will install many C headers like python.h.

So install python-dev package in your system and then remove and install scikit-learn package again.

trouble importing skllearn

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