[SciPy-User] scikits.learn installation

[josef.pktd at gmail.com]

On Tue, Mar 2, 2010 at 6:02 AM, David Trethewey <dlrt2 at ast.cam.ac.uk> wrote:
> I installed the python headers and libboost. It now compiles without
> error but still when I actually try to import the em module I get the
> same error message;
>>>>> import scipy
>>>>> import numpy
>>>>> from scikits.learn.machine import em
>>>>>
>> Traceback (most recent call last):
>>  File "<stdin>", line 1, in <module>
>>  File "scikits/learn/machine/em/__init__.py", line 8, in <module>
>>    from online_em import OnGMM as _OnGMM
>>  File "scikits/learn/machine/em/online_em.py", line 164, in <module>
>>    import _rawden
>> ImportError: No module named _rawden

You could search the source and build directories for *.pyd .
It happened to me in the pre-release version that the pyd files didn't
get copied correctly to the install directories.

Josef

>>
>>
>> David Trethewey
>> Institute of Astronomy, Cambridge, UK
>>
>>
>>
>
>
>
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>> Today's Topics:
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>>    1. Re: Error on importing scikits.learn (David Trethewey)
>>    2. Re: Error on importing scikits.learn (David Trethewey)
>>    3. Re: Error on importing scikits.learn (Helge Reikeras)
>>    4. ANN: SfePy 2010.1 (Robert Cimrman)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 01 Mar 2010 11:46:42 +0000
>> From: David Trethewey <dlrt2 at ast.cam.ac.uk>
>> Subject: Re: [SciPy-User] Error on importing scikits.learn
>> To: scipy-user at scipy.org
>> Message-ID: <4B8BA922.6010900 at ast.cam.ac.uk>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> I get the following error message when attempting to import the
>> expectation maximisation (em) module from scikits.learn :
>>
>>>>>> import scipy
>>>>>> import numpy
>>>>>> from scikits.learn.machine import em
>>>>>>
>>> Traceback (most recent call last):
>>>  File "<stdin>", line 1, in <module>
>>>  File "scikits/learn/machine/em/__init__.py", line 8, in <module>
>>>    from online_em import OnGMM as _OnGMM
>>>  File "scikits/learn/machine/em/online_em.py", line 164, in <module>
>>>    import _rawden
>>> ImportError: No module named _rawden
>>>
>>> Does anyone know what this _rawden module is and why might it not be
>>> found?
>>>
>>> David Trethewey
>>> Institute of Astronomy, Cambridge, UK
>>>
>>>
>>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Mon, 01 Mar 2010 11:51:14 +0000
>> From: David Trethewey <dlrt2 at ast.cam.ac.uk>
>> Subject: Re: [SciPy-User] Error on importing scikits.learn
>> To: scipy-user at scipy.org
>> Message-ID: <4B8BAA32.3000004 at ast.cam.ac.uk>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> I have traced it back to an error in compiling scikits.learn itself:
>>
>> building 'scikits.learn.machine.em._rawden' extension
>> compiling C sources
>> C compiler: gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2
>> -Wall -Wstrict-prototypes -fPIC
>>
>> compile options: '-I/usr/lib/python2.6/dist-packages/numpy/core/include
>> -I/usr/include/python2.6 -c'
>> gcc: scikits/learn/machine/em/src/pure_den.c
>> scikits/learn/machine/em/src/pure_den.c:7:20: error: Python.h: No such
>> file or directory
>>
>> David
>>
>> David Trethewey wrote:
>>
>>> I get the following error message when attempting to import the
>>> expectation maximisation (em) module from scikits.learn :
>>>
>>>>>>> import scipy
>>>>>>> import numpy
>>>>>>> from scikits.learn.machine import em
>>>>>>>
>>>> Traceback (most recent call last):
>>>>  File "<stdin>", line 1, in <module>
>>>>  File "scikits/learn/machine/em/__init__.py", line 8, in <module>
>>>>    from online_em import OnGMM as _OnGMM
>>>>  File "scikits/learn/machine/em/online_em.py", line 164, in <module>
>>>>    import _rawden
>>>> ImportError: No module named _rawden
>>>>
>>>> Does anyone know what this _rawden module is and why might it not be
>>>> found?
>>>>
>>>> David Trethewey
>>>> Institute of Astronomy, Cambridge, UK
>>>>
>>>>
>>>>
>>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Mon, 01 Mar 2010 13:55:01 +0200
>> From: "Helge Reikeras" <helge.reikeras at gmail.com>
>> Subject: Re: [SciPy-User] Error on importing scikits.learn
>> To: "SciPy Users List" <scipy-user at scipy.org>
>> Message-ID: <op.u8v0pqws9y0l3i at helge-desktop>
>> Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes
>>
>> On Mon, 01 Mar 2010 13:51:14 +0200, David Trethewey <dlrt2 at ast.cam.ac.uk>
>> wrote:
>>
>>
>>> compile options: '-I/usr/lib/python2.6/dist-packages/numpy/core/include
>>> -I/usr/include/python2.6 -c'
>>> gcc: scikits/learn/machine/em/src/pure_den.c
>>> scikits/learn/machine/em/src/pure_den.c:7:20: error: Python.h: No such
>>> file or directory
>>>
>>
>> This is because you don't have the Python header files installed. You need
>> to install these somehow. E.g. if you are running Ubuntu you do "sudo
>> apt-get install python-dev".
>>
>>
>
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