[SciPy-Dev] Error while trying to build scipy: NotFoundError: nolapack/blas resources found

Sun Feb 25 21:14:31 EST 2018

Thank you all. I have started with conda by installing Miniconda and it
works great!!

Pinaki

On Mon, Feb 26, 2018 at 2:04 AM, Mark Mikofski <bwana.marko at yahoo.com>
wrote:

> As xoviat says, if you want all libs in your sandboxed environment then
> either use (1) conda, (2) a docker image, or (3) autotools with
> `PREFIX=<your-env>`, from easiest to hardest
>
> Sent from Yahoo Mail on Android
> <https://overview.mail.yahoo.com/mobile/?.src=Android>
>
> On Sun, Feb 25, 2018 at 12:25 PM, xoviat
> <xoviat at gmail.com> wrote:
>
> You’ve discovered that Python packages can depend on native system
> libraries, and that sharing libraries globally could be a problem. Of
> course, as with anything in computer science, you aren’t the first person
> to discover this problem.
>
>
>
> If you’re looking for a package manager that can manage system libraries
> and Python packages, conda is your solution. However, you should consider
> the cost/benefit of learning conda vs. just keeping your head down and
> working on whatever issue you would like to work on.
>
>
>
> Also note that those BLAS and LAPACK packages are for development only and
> should not be used in production. Distributors will use a more performant
> BLAS and LAPACK package that’s written in Assembly. Again, it’s a question
> of whether it’s worth your time to build a performant BLAS and LAPACK
> library vs. just using one that’s “good enough”  to get you through
> development.
>
>
>
> *From: *Pinaki Nath Chowdhury <pinakinathc at gmail.com>
> *Sent: *Sunday, February 25, 2018 2:15 PM
> *To: *bwana.marko at yahoo.com; SciPy Developers List <scipy-dev at python.org>;
> xoviat at gmail.com
> *Subject: *Re: [SciPy-Dev] Error while trying to build scipy:
> NotFoundError: nolapack/blas resources found
>
>
>
> Thank you very much.
>
> As you all pointed out, I needed to get BLAS and LAPACK development
> libraries and fortan compiler.
>
> hence the issue was resolved by simply using:
> `sudo apt-get install libblas-dev liblapack-dev gfortran`
>
>
>
> But I am a bit worried that this command installed those development
> libraries in my main system and not in the virtualenv.
>
> So just out of curiosity I wanted to ask, if there is some way in which we
> can completely install all packages in a virtualenv and then start coding?
> When I no more feel like working, I can simple delete the virtualenv.
>
>
>
> Thanks
>
> Pinaki
>
>
>
> On Mon, Feb 26, 2018 at 12:32 AM, Mark Mikofski <bwana.marko at yahoo.com>
> wrote:
>
> Hi Pinaki,
>
>
>
> Building SciPy from source requires BLAS and LAPACK development libraries,
> and aFORTRAN compiler. That seems to me to be what your traceback is
> complaint about.
>
>
>
> Can you use a wheel instead? There are wheels for every platform at pypi:
> https://pypi.python.org/pypi/scipy
>
>
>
> Can you tell us what platform you are using? If it is Ubuntu Linux try
> libblas-dev, liblapack-dev, libopenblas-dev, and gfortran by using `sudo
> apt install <package>`. In rhel/fedora the names are slightly different.
>
>
>
> If you're in Mac osx, building from source then you probably will need
> homebrew to install the dev libraries and gcc (which different from clang
> that shops with xcode)
>
>
>
> Try reading the dev docs on building SciPy from source here:
> https://scipy.github.io/devdocs/building/index.html
>
>
>
> Another thought is if you are missing conda and pip, it's possible you
> have different sources of BLAS and LAPACK. Start your Python interpreter,
> import numpy and execute `numpy.show_config()` to see what numpy was built
> with. You will have to match the configuration for scipy.
>
>
>
> Hope this helps?
>
>
>
>
>
> Sent from Yahoo Mail on Android
>
>
>
> On Sun, Feb 25, 2018 at 10:34 AM, Pinaki Nath Chowdhury
>
> <pinakinathc at gmail.com> wrote:
>
> Hi
>
> I am trying to build Scipy package in virtualenv and getting the following
> error message:
>
>
>
> ```
>
> Traceback (most recent call last):
>
>   File "setup.py", line 467, in <module>
>
>     setup_package()
>
>   File "setup.py", line 463, in setup_package
>
>     setup(**metadata)
>
>   File "/home/pinaki/gsoc/local/lib/python2.7/site-packages/numpy/distutils/core.py",
> line 135, in setup
>
>     config = configuration()
>
>   File "setup.py", line 381, in configuration
>
>     config.add_subpackage('scipy')
>
>   File "/home/pinaki/gsoc/local/lib/python2.7/site-packages/numpy/distutils/misc_util.py",
> line 1024, in add_subpackage
>
>     caller_level = 2)
>
>   File "/home/pinaki/gsoc/local/lib/python2.7/site-packages/numpy/distutils/misc_util.py",
> line 993, in get_subpackage
>
>     caller_level = caller_level + 1)
>
>   File "/home/pinaki/gsoc/local/lib/python2.7/site-packages/numpy/distutils/misc_util.py",
> line 930, in _get_configuration_from_setup_py
>
>     config = setup_module.configuration(*args)
>
>   File "scipy/setup.py", line 15, in configuration
>
>     config.add_subpackage('linalg')
>
>   File "/home/pinaki/gsoc/local/lib/python2.7/site-packages/numpy/distutils/misc_util.py",
> line 1024, in add_subpackage
>
>     caller_level = 2)
>
>   File "/home/pinaki/gsoc/local/lib/python2.7/site-packages/numpy/distutils/misc_util.py",
> line 993, in get_subpackage
>
>     caller_level = caller_level + 1)
>
>   File "/home/pinaki/gsoc/local/lib/python2.7/site-packages/numpy/distutils/misc_util.py",
> line 930, in _get_configuration_from_setup_py
>
>     config = setup_module.configuration(*args)
>
>   File "scipy/linalg/setup.py", line 19, in configuration
>
>     raise NotFoundError('no lapack/blas resources found')
>
> numpy.distutils.system_info.NotFoundError: no lapack/blas resources found
>
> ```
>
>
>
> The following is details of my system:
>
> ```
>
> *python --verison :* Python 2.7.12
>
>
>
> *pip freeze :*
>
>
>
> alabaster==0.7.10
>
> Babel==2.5.3
>
> certifi==2018.1.18
>
> chardet==3.0.4
>
> Cython==0.27.3
>
> docutils==0.14
>
> idna==2.6
>
> imagesize==1.0.0
>
> Jinja2==2.10
>
> MarkupSafe==1.0
>
> numpy==1.14.1
>
> packaging==16.8
>
> Pygments==2.2.0
>
> pyparsing==2.2.0
>
> pytz==2018.3
>
> requests==2.18.4
>
> six==1.11.0
>
> snowballstemmer==1.2.1
>
> Sphinx==1.7.1
>
> sphinxcontrib-websupport==1.0.1
>
> typing==3.6.4
>
> urllib3==1.22
>
> ```
>
>
>
> Hope the above information is sufficient.
>
>
>
> Thanks
>
> Pinaki
>
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