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Date:	Mon, 17 Apr 2017 03:01:20 -0700 (MST)
From:	Kptain <kaptain DOT biwouak AT gmail DOT com>
To:	cygwin AT cygwin DOT com
Message-ID:	<1492423280653-133510.post@n5.nabble.com>
In-Reply-To:	<c121be04-b63e-2854-689f-7888c0c42fa5@cs.umass.edu>
References:	<1492335890346-133485 DOT post AT n5 DOT nabble DOT com> <1492342647795-133490 DOT post AT n5 DOT nabble DOT com> <c121be04-b63e-2854-689f-7888c0c42fa5 AT cs DOT umass DOT edu>
Subject:	Re: Numpy 1.12.1 setup issue (targetting Python 3.6.1) from Cygwin 2.8.0
MIME-Version:	1.0

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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