Bad news I’m afraid. Still got the same problem.

I cloned and build nupic.core following your instructions.
It all went ok by the looks of it.

I then installed nupic again in a new virtualenv.
python setup.py install —nupic-core-dir=$NUPIC_CORE/build/release

It said that it was using binaries from $NUPIC_CORE/build/release.

Then I ran the tests but still got the same problem.

I used otool to check the _math.so file that is imported when you run “import 
nupic.bindings.math”:

> otool -L $NUPIC/nupic/bindings/_math.so 
> /Users/ruaridh/dev/nupic/nupic/bindings/_math.so:
>       /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
> version 1213.0.0)
>       /System/Library/Frameworks/Python.framework/Versions/2.7/Python 
> (compatibility version 2.7.0, current version 2.7.6)
>       /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 
> 120.0.0)


It seems to be linked to the System python rather than home-brew’s python. I’m 
not sure why it’s doing this.
Running “python” gives the home-brew version (/usr/local/bin/python). However 
/usr/bin/python is still the system version.
My $PATH starts with “/usr/local/bin”.

If this proves complicated to fix I could uninstall Homebrew python and just 
use the system version. It might be easier.

Cheers,
Ruaridh



> On 28 Jan 2015, at 01:13, Matthew Taylor <[email protected]> wrote:
> 
> Ugh, ok. Well then, the next step is to try to install nupic.core.
> 
> Checkout or download and expand the nupic.core zip from
> https://github.com/numenta/nupic.core. You should have clang already
> on your Mac if you've installed XCode Developer Tools, but you might
> not have cmake (you can brew install it). Then follow the readme
> instructions:
> 
>> mkdir -p $NUPIC_CORE/build/scripts
>> cd $NUPIC_CORE/build/scripts
>> cmake $NUPIC_CORE/src -DCMAKE_INSTALL_PREFIX=../release
>> make install
> 
> The -DCMAKE_INSTALL_PREFIX option will build out the binary release
> into $NUPIC_CORE/build/release, and you'll use this path now when you
> build NuPIC.
> 
> Now you go back to NUPIC and build with the option to specify the
> location of nupic.core:
> 
>> cd $NUPIC
>> python setup.py install --user --nupic-core-dir=$NUPIC_CORE/build/release
> 
> For extreme detail, see
> https://github.com/numenta/nupic/wiki/NuPIC's-Dependency-on-nupic.core
> 
> Fingers crossed!
> 
> ---------
> Matt Taylor
> OS Community Flag-Bearer
> Numenta
> 
> 
> On Tue, Jan 27, 2015 at 5:05 PM, Ruaridh O'Donnell
> <[email protected]> wrote:
>> Thanks again for the help,
>> 
>> Still got the same error I’m afraid.
>> But I found some more information online.
>> 
>> Here’s what I did:
>> I had a virtualenv that I pip installed nupic into before. (which was
>> currently activated)
>> I ran “pip uninstall nupic” until there was no more nupic. ("pip list" just
>> shows the installed dependencies)
>> I had deleted the nupic repo before so I cloned it again, and set $NUPIC.
>> "cd $NUPIC"
>> “python setup.py install” (I checked to make sure this python referred to
>> Homebrew’s python)
>> It all seemed to build fine. I saw the file being downloaded from AWS S3
>> ending in “-darwin64.tar.gz"
>> I ran the tests “./scripts/run_nupic_tests -u” and it crashed almost
>> immediately
>> Running "python” then “import nupic.bindings.math” gives the same error as
>> before:
>> 
>> Fatal Python error: PyThreadState_Get: no current thread
>> Abort trap: 6
>> 
>> 
>> I found a stack overflow question with the same error:
>> 
>> this error shows up when a module tries to use a python library that is
>> different than the one the interpreter uses
>> 
>> http://stackoverflow.com/questions/15678153/homebrew-python-on-mac-os-x-10-8-fatal-python-error-pythreadstate-get-no-cu?lq=1
>> 
>> I had a look at my console output and there’s line referring to
>> “/System/Library/Frameworks/Python.framework/Versions/2.7/Python” and
>> another referring to
>> “/usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/Python”.
>> I’m guessing I need to build nupic.core myself to get it to use homebrew’s
>> version of python rather than Apple’s.
>> 
>> Cheers,
>> Ruaridh
>> 
>> On 27 Jan 2015, at 23:58, Matthew Taylor <[email protected]> wrote:
>> 
>> Well crap. I'd like to step back and try to get you building from the
>> source code first. You said you cloned the repo, so be sure to "git
>> pull" first, then...
>> 
>> First make sure no old or half-installed versions of nupic are laying
>> around:
>> 
>> pip uninstall nupic
>> 
>> 
>> Run this command several times, until you get an error that "nupic"
>> cannot be found. Sometimes you have several versions installed,
>> especially if you're been trying to install over time. Then...
>> 
>> cd $NUPIC
>> python setup.py install --user
>> 
>> 
>> No virtualenv required, but feel free to use one and omit the --user
>> option. You should notice that the first thing happening is a download
>> of the nupic.core binary file for your platform from AWS S3. The
>> platform and SHA will be in the filename downloaded. If this command
>> runs without an error, try running unit tests:
>> 
>> ./scripts/run_nupic_tests -u
>> 
>> 
>> If you have that _math.so problem, it should pop up here right away.
>> If not, and all the tests pass, the next test is to run the simple
>> hotgym example:
>> 
>> python examples/opf/clients/hotgym/simple/hotgym.py
>> 
>> 
>> This will output some junk to your console, but should no throw any
>> exceptions.
>> 
>> Please tell me how that goes and at what stage you received your first
>> error and I'll give you instructions on building nupic.core yourself
>> manually (it's not that hard if you have the right compiler).
>> 
>> Thanks for your time,
>> ---------
>> Matt Taylor
>> OS Community Flag-Bearer
>> Numenta
>> 
>> 
>> On Tue, Jan 27, 2015 at 3:39 PM, Ruaridh O'Donnell
>> <[email protected]> wrote:
>> 
>> Thanks for the reply,
>> I’ve tried a few things, unfortunately none of them have worked.
>> 
>> 1) I noticed when pip was downloading nupic from PYPI it was downloading
>> "nupic-0.1.0-cp27-none-macosx_10_9_intel.whl”. I assumed this was meant for
>> mavericks not yosemite, so I tried downloading  the 10_10 version and got
>> pip to install it. But I ended with exactly the same error as before.
>> 
>> 2) I also tried building nupic from source. I cloned the repo, set up
>> $NUPIC, and build it (inside a virtualenv) using “pip install -e
>> path/to/nupic/repo/“. The -e option in pip apparently just uses "setup.py
>> develop”. It seemed to build OK.
>> But I still ended up with the same error as before.
>> 
>> 3) I got your email so I uninstalled home-brew’s python and tried “brew
>> install python-devel”. But brew couldn’t find any formulas with that name.
>> I couldn’t find any reference on development headers for home-brew python
>> through google.
>> So I tried just installing python as I had it before (with "brew install
>> python”) and installing nupic 0.1.2 but again I’m coming up against the same
>> error.
>> 
>> Out of curiosity I looked at what point python crashes when running “import
>> nupic.bindings.math”.
>> It looks like it finds a file named _math.so and then crashes when trying to
>> import it.
>> 
>> I’m not sure if any of that was helpful, I’m not too knowledgable in this
>> area.
>> 
>> Thanks,
>> Ruaridh
>> 
>> On 26 Jan 2015, at 17:50, Matthew Taylor <[email protected]> wrote:
>> 
>> Ruaridh,
>> 
>> You may not have python development headers installed. Try "brew
>> install python-devel", then re-install NuPIC. Let me know if that
>> helps.
>> ---------
>> Matt Taylor
>> OS Community Flag-Bearer
>> Numenta
>> 
>> 
>> On Fri, Jan 23, 2015 at 12:13 PM, Ruaridh O'Donnell
>> <[email protected]> wrote:
>> 
>> Hello,
>> I’m having trouble installing NuPIC with pip on a new mac with OS X
>> Yosemite.
>> In python, NuPIC imports OK ("import nupic"), but importing
>> nupic.bindings.math and many other modules crashes python.
>> 
>> For example
>> 
>> import nupic.bindings.math
>> 
>> Fatal Python error: PyThreadState_Get: no current thread
>> Abort trap: 6
>> 
>> or
>> 
>> from nupic.frameworks.opf.modelfactory import ModelFactory
>> 
>> Fatal Python error: PyThreadState_Get: no current thread
>> Abort trap: 6
>> 
>> Here’s how I installed everything (on a new mac):
>> - I installed home-brew in the standard way (“ruby -e "$(curl -fsSL
>> https://raw.githubusercontent.com/Homebrew/install/master/install)"”)
>> - installed python 2.7.9 ("homebrew install python”)
>> - installed virtualenv ("pip install virtualenv”) (this used the pip
>> corresponding to homebrew’s python)
>> - set up a virtual env in called ‘all’ in ~/ (“virtualenv all”)
>> - installed nupi dependencies ("brew install automake libtool cmake”)
>> - activated my virtualenv
>> - installed NuPIC ("pip install nupic”)
>> Everything seemed to run fine but I now get the errors mentioned above.
>> 
>> I’m trying to use home-brew’s versions of python (2.7.9) rather the system
>> one that came pre installed (2.7.6).
>> Entering “python” in terminal points to homebrew’s python, not the system
>> python.
>> I tested out installing other modules with pip (in my virtualenv) and they
>> all seem to work fine. (matplotlib)
>> Creating a virtualenv uses homebrew's python
>> 
>> Also when pip was installing nupic I noticed the wheel it was downloading
>> was the 10_9 file not the 10_10 that is listed on PYPI:
>> 
>> Collecting nupic
>> Downloading nupic-0.1.0-cp27-none-macosx_10_9_intel.whl (6.6MB)
>>  100% |################################| 6.6MB 848kB/s
>> 
>> Not sure if that’s relevant
>> 
>> Any help/insight into this would be appreciated,
>> 
>> Ruaridh
>> 
>> 
>> 
>> 

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