Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Kptain]

Not possible to setup Numpy 1.12.1 from Cygwin:

pip3 install numpy

Collecting numpy
Using cached numpy-1.12.1.zip
Building wheels for collected packages: numpy
Running setup.py bdist_wheel for numpy ... error
Complete output from command /usr/bin/python3 -u -c "import setuptools,
tokenize;file='/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/setup.py';f=getattr(tokenize,
'open', open)(file);code=f.read().replace('\r\n',
'\n');f.close();exec(compile(code, file, 'exec'))" bdist_wheel -d
/.gfmwk_tmp_120417204610_19564/spectools/tmpdbmu4l3rpip-wheel- --python-tag
cp36:
Running from numpy source directory.
blas_opt_info:
blas_mkl_info:
libraries mkl_rt not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

blis_info:
libraries blis not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

openblas_info:
libraries openblas not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

atlas_3_10_blas_threads_info:
Setting PTATLAS=ATLAS
libraries tatlas not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

atlas_3_10_blas_info:
libraries satlas not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

atlas_blas_threads_info:
Setting PTATLAS=ATLAS
libraries ptf77blas,ptcblas,atlas not found in ['/usr/local/lib',
'/usr/lib', '/usr/lib/']
NOT AVAILABLE

atlas_blas_info:
libraries f77blas,cblas,atlas not found in ['/usr/local/lib', '/usr/lib',
'/usr/lib/']
NOT AVAILABLE

/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/system_info.py:572:
UserWarning:
Atlas (http://math-atlas.sourceforge.net/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [atlas]) or by setting
the ATLAS environment variable.
self.calc_info()
blas_info:
libraries blas not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/system_info.py:572:
UserWarning:
Blas (http://www.netlib.org/blas/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [blas]) or by setting
the BLAS environment variable.
self.calc_info()
blas_src_info:
NOT AVAILABLE

/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/system_info.py:572:
UserWarning:
Blas (http://www.netlib.org/blas/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [blas_src]) or by setting
the BLAS_SRC environment variable.
self.calc_info()
NOT AVAILABLE

non-existing path in 'numpy/distutils': 'site.cfg'
F2PY Version 2
lapack_opt_info:
lapack_mkl_info:
libraries mkl_rt not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

openblas_lapack_info:
libraries openblas not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

atlas_3_10_threads_info:
Setting PTATLAS=ATLAS
libraries tatlas,tatlas not found in /usr/local/lib
libraries lapack_atlas not found in /usr/local/lib
libraries tatlas,tatlas not found in /usr/lib
libraries lapack_atlas not found in /usr/lib
libraries tatlas,tatlas not found in /usr/lib/
libraries lapack_atlas not found in /usr/lib/
<class 'numpy.distutils.system_info.atlas_3_10_threads_info'>
NOT AVAILABLE

atlas_3_10_info:
libraries satlas,satlas not found in /usr/local/lib
libraries lapack_atlas not found in /usr/local/lib
libraries satlas,satlas not found in /usr/lib
libraries lapack_atlas not found in /usr/lib
libraries satlas,satlas not found in /usr/lib/
libraries lapack_atlas not found in /usr/lib/
<class 'numpy.distutils.system_info.atlas_3_10_info'>
NOT AVAILABLE

atlas_threads_info:
Setting PTATLAS=ATLAS
libraries ptf77blas,ptcblas,atlas not found in /usr/local/lib
libraries lapack_atlas not found in /usr/local/lib
libraries ptf77blas,ptcblas,atlas not found in /usr/lib
libraries lapack_atlas not found in /usr/lib
libraries ptf77blas,ptcblas,atlas not found in /usr/lib/
libraries lapack_atlas not found in /usr/lib/
<class 'numpy.distutils.system_info.atlas_threads_info'>
NOT AVAILABLE

atlas_info:
libraries f77blas,cblas,atlas not found in /usr/local/lib
libraries lapack_atlas not found in /usr/local/lib
libraries f77blas,cblas,atlas not found in /usr/lib
libraries lapack_atlas not found in /usr/lib
libraries f77blas,cblas,atlas not found in /usr/lib/
libraries lapack_atlas not found in /usr/lib/
<class 'numpy.distutils.system_info.atlas_info'>
NOT AVAILABLE

lapack_info:
libraries lapack not found in ['/usr/local/lib', '/usr/lib', '/usr/lib/']
NOT AVAILABLE

/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/system_info.py:572:
UserWarning:
Lapack (http://www.netlib.org/lapack/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [lapack]) or by setting
the LAPACK environment variable.
self.calc_info()
lapack_src_info:
NOT AVAILABLE

/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/system_info.py:572:
UserWarning:
Lapack (http://www.netlib.org/lapack/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [lapack_src]) or by setting
the LAPACK_SRC environment variable.
self.calc_info()
NOT AVAILABLE

/usr/lib/python3.6/distutils/dist.py:261: UserWarning: Unknown distribution
option: 'define_macros'
warnings.warn(msg)
running bdist_wheel
running build
running config_cc
unifing config_cc, config, build_clib, build_ext, build commands --compiler
options
running config_fc
unifing config_fc, config, build_clib, build_ext, build commands --fcompiler
options
running build_src
build_src
building py_modules sources
creating build
creating build/src.cygwin-2.8.0-x86_64-3.6
creating build/src.cygwin-2.8.0-x86_64-3.6/numpy
creating build/src.cygwin-2.8.0-x86_64-3.6/numpy/distutils
building library "npymath" sources
customize GnuFCompiler
Could not locate executable g77
Could not locate executable f77
customize IntelVisualFCompiler
Could not locate executable ifort
Could not locate executable ifl
customize AbsoftFCompiler
Could not locate executable f90
customize CompaqVisualFCompiler
Found executable /cygdrive/d/GFMWK_NEXT/base/cygwin/bin/DF
customize IntelItaniumVisualFCompiler
Could not locate executable efl
customize Gnu95FCompiler
Could not locate executable gfortran
Could not locate executable f95
customize G95FCompiler
Could not locate executable g95
don't know how to compile Fortran code on platform 'posix'
C compiler: gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3
-Wall -Wstrict-prototypes -ggdb -O2 -pipe -Wimplicit-function-declaration
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/build=/usr/src/debug/python3-3.6.1-1
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/src/Python-3.6.1=/usr/src/debug/python3-3.6.1-1
-ggdb -O2 -pipe -Wimplicit-function-declaration
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/build=/usr/src/debug/python3-3.6.1-1
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/src/Python-3.6.1=/usr/src/debug/python3-3.6.1-1

compile options: '-Inumpy/core/src/private -Inumpy/core/src -Inumpy/core
-Inumpy/core/src/npymath -Inumpy/core/src/multiarray -Inumpy/core/src/umath
-Inumpy/core/src/npysort -I/usr/include/python3.6m -c'
gcc: _configtest.c
gcc _configtest.o -o _configtest.exe
success!
removing: _configtest.c _configtest.o _configtest.exe
C compiler: gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3
-Wall -Wstrict-prototypes -ggdb -O2 -pipe -Wimplicit-function-declaration
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/build=/usr/src/debug/python3-3.6.1-1
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/src/Python-3.6.1=/usr/src/debug/python3-3.6.1-1
-ggdb -O2 -pipe -Wimplicit-function-declaration
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/build=/usr/src/debug/python3-3.6.1-1
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/src/Python-3.6.1=/usr/src/debug/python3-3.6.1-1

compile options: '-Inumpy/core/src/private -Inumpy/core/src -Inumpy/core
-Inumpy/core/src/npymath -Inumpy/core/src/multiarray -Inumpy/core/src/umath
-Inumpy/core/src/npysort -I/usr/include/python3.6m -c'
gcc: _configtest.c
_configtest.c:1:5: warning: conflicting types for built-in function 'exp'
int exp (void);
^
gcc _configtest.o -o _configtest.exe
success!
removing: _configtest.c _configtest.o _configtest.exe
creating build/src.cygwin-2.8.0-x86_64-3.6/numpy/core
creating build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src
creating build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npymath
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npymath/npy_math.c
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npymath/ieee754.c
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npymath/npy_math_complex.c
building library "npysort" sources
creating build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npysort
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npysort/quicksort.c
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npysort/mergesort.c
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npysort/heapsort.c
creating build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/private
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/private/npy_partition.h
adding 'build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/private' to
include_dirs.
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npysort/selection.c
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/private/npy_binsearch.h
conv_template:>
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/npysort/binsearch.c
None - nothing done with h_files =
['build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/private/npy_partition.h',
'build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/src/private/npy_binsearch.h']
building extension "numpy.core._dummy" sources
Generating
build/src.cygwin-2.8.0-x86_64-3.6/numpy/core/include/numpy/config.h
C compiler: gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3
-Wall -Wstrict-prototypes -ggdb -O2 -pipe -Wimplicit-function-declaration
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/build=/usr/src/debug/python3-3.6.1-1
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/src/Python-3.6.1=/usr/src/debug/python3-3.6.1-1
-ggdb -O2 -pipe -Wimplicit-function-declaration
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/build=/usr/src/debug/python3-3.6.1-1
-fdebug-prefix-map=/usr/src/ports/python3/python3-3.6.1-1.x86_64/src/Python-3.6.1=/usr/src/debug/python3-3.6.1-1

compile options: '-Inumpy/core/src/private -Inumpy/core/src -Inumpy/core
-Inumpy/core/src/npymath -Inumpy/core/src/multiarray -Inumpy/core/src/umath
-Inumpy/core/src/npysort -I/usr/include/python3.6m -c'
gcc: _configtest.c
_configtest.c:1:20: fatal error: Python.h: No such file or directory
compilation terminated.
_configtest.c:1:20: fatal error: Python.h: No such file or directory
compilation terminated.
failure.
removing: _configtest.c _configtest.o
Traceback (most recent call last):
File "", line 1, in
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/setup.py",
line 391, in
setup_package()
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/setup.py",
line 383, in setup_package
setup(**metadata)
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/core.py",
line 169, in setup
return old_setup(**new_attr)
File "/usr/lib/python3.6/distutils/core.py", line 148, in setup
dist.run_commands()
File "/usr/lib/python3.6/distutils/dist.py", line 955, in run_commands
self.run_command(cmd)
File "/usr/lib/python3.6/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/usr/lib/python3.6/site-packages/wheel/bdist_wheel.py", line 199, in
run
self.run_command('build')
File "/usr/lib/python3.6/distutils/cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "/usr/lib/python3.6/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/command/build.py",
line 47, in run
old_build.run(self)
File "/usr/lib/python3.6/distutils/command/build.py", line 135, in run
self.run_command(cmd_name)
File "/usr/lib/python3.6/distutils/cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "/usr/lib/python3.6/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/command/build_src.py",
line 148, in run
self.build_sources()
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/command/build_src.py",
line 165, in build_sources
self.build_extension_sources(ext)
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/command/build_src.py",
line 324, in build_extension_sources
sources = self.generate_sources(sources, ext)
File
"/.gfmwk_tmp_120417204610_19564/spectools/pip-build-zu8uhs4m/numpy/numpy/distutils/command/build_src.py",
line 377, in generate_sources
source = func(extension, build_dir)
File "numpy/core/setup.py", line 416, in generate_config_h
moredefs, ignored = cocache.check_types(config_cmd, ext, build_dir)
File "numpy/core/setup.py", line 40, in check_types
out = check_types(*a, **kw)
File "numpy/core/setup.py", line 275, in check_types
"install {0}-dev|{0}-devel.".format(python))
SystemError: Cannot compile 'Python.h'. Perhaps you need to install
python-dev|python-devel.

Current configuration:
Cygwin 2.8.0
Python: 3.6.1

As I have understand that Numpy requirements are automatically selected also
for install, could you clarified which package have to be available on
Cygwin in order to proceed Numpy setup.

I have identified that Openblas, Atlas (or math-atlas), lapack packages have
to be installed but could you
clarify which cygwin packages exactly. 

It concerns, I guess most of Sci-Py Python modules.

I would add that python3-numpy package was added when I have selected cygwin
package for setup.
But when, I am doing:
import numpy
from my script
-> it's failing with meassage below:
$ python3 numpy_sample.py
Traceback (most recent call last):
File "numpy_sample.py", line 3, in
a = np.array([1,2,3,4])
AttributeError: module 'numpy' has no attribute 'array'

Thanks in advance for your help,




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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Marco Atzeri]

On 16/04/2017 11:44, Kptain wrote:
> Not possible to setup Numpy 1.12.1 from Cygwin:
>
> pip3 install numpy


Install python3-numpy from Setup.


> Thanks in advance for your help,


Regards
Marco

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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Kptain]

Yes, but as I said, the problem is this step was already done:

"I would add that python3-numpy package was added when I have selected
cygwin package for setup".

For me the problem is to identify clearly other cygwin packages required as
dependencies are not already highlighted by cygwin setup.

Concerning Python3 packages installed, PIP is done for that and is working
well.
I have already used for Py packages used pure python source code: no
problem.

However for Py libraries involving C source code or having some graphics
dependencies, the problem is different: it is exactly the issue I'm facing
with numpy.
I could have added same kind of issue with matplotlib.

Rgds,

Stéphane





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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Eliot Moss]

On 4/16/2017 7:37 AM, Kptain wrote:
> Yes, but as I said, the problem is this step was already done:
> 
> "I would add that python3-numpy package was added when I have selected
> cygwin package for setup".
> 
> For me the problem is to identify clearly other cygwin packages required as
> dependencies are not already highlighted by cygwin setup.
> 
> Concerning Python3 packages installed, PIP is done for that and is working
> well.
> I have already used for Py packages used pure python source code: no
> problem.
> 
> However for Py libraries involving C source code or having some graphics
> dependencies, the problem is different: it is exactly the issue I'm facing
> with numpy.
> I could have added same kind of issue with matplotlib.

I am sure someone else will correct me if I am wrong, but you
need the Cygwin versions of these, not the Windows or Linux
versions.  I suspect PIP does not fetch Cygwin versions, thus
you must acquire these via setup.  However, they are not
required for base python, so you have to request them explicitly
in setup ...

An alternative is to build them from source yourself under Cygwin,
which I seem to recall doing at some point ...

Regards -- EM

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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Kptain]

I have installed python-dev package on Cygwin.

It seems to be better as now I am able to build wheels for collected
packages: numpy

$ pip3 install numpy
Collecting numpy
Using cached numpy-1.12.1.zip
Building wheels for collected packages: numpy
Running setup.py bdist_wheel for numpy ... done
Stored in directory:
/cygdrive/d/ARCHITECTURE/.cache/pip/wheels/50/b5/d0/3994af801e0786dfb41a9856ddf85d69c54f233e749935d536
Successfully built numpy
Installing collected packages: numpy
Successfully installed numpy-1.12.1
<<

No issue detected also from from pip checker:

$ pip3 check numpy
No broken requirements found.
<<

However, I am still not able to run my numpy sample script:

(short extract)
import numpy as np

a = np.array([1,2,3,4])
print(a)

python3 numpy_sample.py
Traceback (most recent call last):
File "numpy_sample.py", line 1, in
import numpy as np
File
"/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/init.py",
line 142, in
from . import add_newdocs
File
"/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/add_newdocs.py",
line 13, in
from numpy.lib import add_newdoc
File
"/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/lib/init.py",
line 18, in
from .polynomial import *
File
"/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/lib/polynomial.py",
line 20, in
from numpy.linalg import eigvals, lstsq, inv
File
"/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/linalg/init.py",
line 51, in
from .linalg import *
File
"/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/linalg/linalg.py",
line 29, in
from numpy.linalg import lapack_lite, _umath_linalg
ImportError: No such file or directory
<<

I am not also able to find any lapack library for python, except cygwin
packages below also installed:
fort77
libopenblas
liblapack0
liblapack-devel

Then, It is not clear what is missing : other cygwin package or python3
dependency as pip checker highlights nothing missing.

Thanks again for your help,




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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Erik Bray]

On Mon, Apr 17, 2017 at 12:01 PM, Kptain <kaptain.biwouak@gmail.com> wrote:
> I have installed python-dev package on Cygwin.
>
> It seems to be better as now I am able to build wheels for collected
> packages: numpy
>
> $ pip3 install numpy
> Collecting numpy
> Using cached numpy-1.12.1.zip
> Building wheels for collected packages: numpy
> Running setup.py bdist_wheel for numpy ... done
> Stored in directory:
> /cygdrive/d/ARCHITECTURE/.cache/pip/wheels/50/b5/d0/3994af801e0786dfb41a9856ddf85d69c54f233e749935d536
> Successfully built numpy
> Installing collected packages: numpy
> Successfully installed numpy-1.12.1
> <<
>
> No issue detected also from from pip checker:
>
> $ pip3 check numpy
> No broken requirements found.
> <<
>
> However, I am still not able to run my numpy sample script:
>
> (short extract)
> import numpy as np
>
> a = np.array([1,2,3,4])
> print(a)
>
> python3 numpy_sample.py
> Traceback (most recent call last):
> File "numpy_sample.py", line 1, in
> import numpy as np
> File
> "/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/init.py",
> line 142, in
> from . import add_newdocs
> File
> "/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/add_newdocs.py",
> line 13, in
> from numpy.lib import add_newdoc
> File
> "/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/lib/init.py",
> line 18, in
> from .polynomial import *
> File
> "/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/lib/polynomial.py",
> line 20, in
> from numpy.linalg import eigvals, lstsq, inv
> File
> "/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/linalg/init.py",
> line 51, in
> from .linalg import *
> File
> "/cygdrive/d/GFMWK_NEXT/base/cygwin/lib/python3.6/site-packages/numpy/linalg/linalg.py",
> line 29, in
> from numpy.linalg import lapack_lite, _umath_linalg
> ImportError: No such file or directory
> <<
>
> I am not also able to find any lapack library for python, except cygwin
> packages below also installed:
> fort77
> libopenblas
> liblapack0
> liblapack-devel
>
> Then, It is not clear what is missing : other cygwin package or python3
> dependency as pip checker highlights nothing missing.
>
> Thanks again for your help,

I've just started having this problem too.  There appears to be a bug
in the latest version of the liblapack0 package, because the import
lib liblapack.dll.a lists the lapack DLL name as "cyglapack.dll", when
it should be "cyglapack-0.dll".

Copying /lib/lapack/cyglapack-0.dll to /lib/lapack/cyglapack.dll works
as a workaround...

Thanks,
Erik

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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Eliot Moss]

On 4/25/2017 12:34 PM, Erik Bray wrote:

> I've just started having this problem too.  There appears to be a bug
> in the latest version of the liblapack0 package, because the import
> lib liblapack.dll.a lists the lapack DLL name as "cyglapack.dll", when
> it should be "cyglapack-0.dll".
> 
> Copying /lib/lapack/cyglapack-0.dll to /lib/lapack/cyglapack.dll works
> as a workaround...

I suspect that adding a symlink from cyglapack.dll to cyglapack-0.dll
would also work, if one prefers that solution.

Regards - Eliot

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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Brian Inglis]

On 2017-04-25 11:17, Eliot Moss wrote:
> On 4/25/2017 12:34 PM, Erik Bray wrote:
>> I've just started having this problem too. There appears to be a 
>> bug in the latest version of the liblapack0 package, because the 
>> import lib liblapack.dll.a lists the lapack DLL name as 
>> "cyglapack.dll", when it should be "cyglapack-0.dll".
>> Copying /lib/lapack/cyglapack-0.dll to /lib/lapack/cyglapack.dll
>> works as a workaround...
> I suspect that adding a symlink from cyglapack.dll to
> cyglapack-0.dll would also work, if one prefers that solution.

ISTR a discussion around rebase recently where symlinks do not 
work because Windows kernel loads the DLLs.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Eliot Moss]

On 4/25/2017 1:52 PM, Brian Inglis wrote:
> On 2017-04-25 11:17, Eliot Moss wrote:
>> On 4/25/2017 12:34 PM, Erik Bray wrote:
>>> I've just started having this problem too. There appears to be a
>>> bug in the latest version of the liblapack0 package, because the
>>> import lib liblapack.dll.a lists the lapack DLL name as
>>> "cyglapack.dll", when it should be "cyglapack-0.dll".
>>> Copying /lib/lapack/cyglapack-0.dll to /lib/lapack/cyglapack.dll
>>> works as a workaround...
>> I suspect that adding a symlink from cyglapack.dll to
>> cyglapack-0.dll would also work, if one prefers that solution.
> 
> ISTR a discussion around rebase recently where symlinks do not
> work because Windows kernel loads the DLLs.

Ah, good point, Brian!   E

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Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0

[Kptain]

Thanks. I will test it asap I will let you know.


Le 25 avr. 2017 19:52, "Brian Inglis [via Cygwin]" <
ml+s1069669n133687h22@n5.nabble.com> a écrit :

> On 2017-04-25 11:17, Eliot Moss wrote:
> > On 4/25/2017 12:34 PM, Erik Bray wrote:
> >> I've just started having this problem too. There appears to be a
> >> bug in the latest version of the liblapack0 package, because the
> >> import lib liblapack.dll.a lists the lapack DLL name as
> >> "cyglapack.dll", when it should be "cyglapack-0.dll".
> >> Copying /lib/lapack/cyglapack-0.dll to /lib/lapack/cyglapack.dll
> >> works as a workaround...
> > I suspect that adding a symlink from cyglapack.dll to
> > cyglapack-0.dll would also work, if one prefers that solution.
>
> ISTR a discussion around rebase recently where symlinks do not
> work because Windows kernel loads the DLLs.
>
> --
> Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
>
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