Re: What's the official state of Python module scipy in Cygwin?

[My Name <mname989@gmail.com>]

B.I., thank you, but your recipe did not work for me:

==================
$ python3.7 -m pip install scipy
Collecting scipy
  Using cached scipy-1.5.0.tar.gz (25.6 MB)
  Installing build dependencies ... error
  ERROR: Command errored out with exit status 1:
   command: /usr/bin/python3.7 /usr/lib/python3.7/site-packages/pip install
--ignore-installed --no-user --prefix /tmp/pip-build-env-u0tmgezi/overlay
--no-warn-script-location --no-binary :none: --only-binary :none: -i
https://pypi.org/simple -- wheel setuptools 'Cython>=0.29.18'
'numpy==1.14.5; python_version=='"'"'3.6'"'"' and
platform_system!='"'"'AIX'"'"'' 'numpy==1.14.5;
python_version=='"'"'3.7'"'"' and platform_system!='"'"'AIX'"'"''
'numpy==1.17.3; python_version>='"'"'3.8'"'"' and
platform_system!='"'"'AIX'"'"'' 'numpy==1.16.0;
python_version=='"'"'3.6'"'"' and platform_system=='"'"'AIX'"'"''
'numpy==1.16.0; python_version=='"'"'3.7'"'"' and
platform_system=='"'"'AIX'"'"'' 'numpy==1.17.3;
python_version>='"'"'3.8'"'"' and platform_system=='"'"'AIX'"'"''
'pybind11>=2.4.3'
       cwd: None
  Complete output (351 lines):
  Ignoring numpy: markers 'python_version == "3.6" and platform_system !=
"AIX"' don't match your environment
  Ignoring numpy: markers 'python_version >= "3.8" and platform_system !=
"AIX"' don't match your environment
  Ignoring numpy: markers 'python_version == "3.6" and platform_system ==
"AIX"' don't match your environment
  Ignoring numpy: markers 'python_version == "3.7" and platform_system ==
"AIX"' don't match your environment
  Ignoring numpy: markers 'python_version >= "3.8" and platform_system ==
"AIX"' don't match your environment
  Collecting wheel
    Using cached wheel-0.34.2-py2.py3-none-any.whl (26 kB)
  Collecting setuptools
    Using cached setuptools-47.3.1-py3-none-any.whl (582 kB)
  Collecting Cython>=0.29.18
    Using cached Cython-0.29.20-py2.py3-none-any.whl (973 kB)
  Collecting numpy==1.14.5
    Using cached numpy-1.14.5.zip (4.9 MB)
  Collecting pybind11>=2.4.3
    Using cached pybind11-2.5.0-py2.py3-none-any.whl (296 kB)
  Using legacy setup.py install for numpy, since package 'wheel' is not
installed.
  Installing collected packages: wheel, setuptools, Cython, numpy, pybind11
      Running setup.py install for numpy: started
      Running setup.py install for numpy: finished with status 'error'
      ERROR: Command errored out with exit status 1:
       command: /usr/bin/python3.7 -u -c 'import sys, setuptools, tokenize;
sys.argv[0] = '"'"'/tmp/pip-install-wizs3z2z/numpy/setup.py'"'"';
__file__='"'"'/tmp/pip-install-wizs3z2z/numpy/setup.py'"'"';f=getattr(tokenize,
'"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"',
'"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))'
install --record /tmp/pip-record-qmbtrkjp/install-record.txt
--single-version-externally-managed --prefix
/tmp/pip-build-env-u0tmgezi/overlay --compile --install-headers
/tmp/pip-build-env-u0tmgezi/overlay/include/python3.7m/numpy
           cwd: /tmp/pip-install-wizs3z2z/numpy/
      Complete output (326 lines):
      Running from numpy source directory.

      Note: if you need reliable uninstall behavior, then install
      with pip instead of using `setup.py install`:

        - `pip install .`       (from a git repo or downloaded source
                                 release)
        - `pip install numpy`   (last NumPy release on PyPi)


      blas_opt_info:
      blas_mkl_info:
      customize UnixCCompiler
        libraries mkl_rt not found in ['/usr/local/lib', '/usr/lib',
'/usr/lib/']
        NOT AVAILABLE

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

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

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

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

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

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

      /tmp/pip-install-wizs3z2z/numpy/numpy/distutils/system_info.py:624:
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:
      customize UnixCCompiler
      customize UnixCCompiler
      C compiler: gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv
-O3 -Wall -ggdb -O2 -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1
-ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
-fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1

      creating /tmp/tmploe9v3xi/tmp
      creating /tmp/tmploe9v3xi/tmp/tmploe9v3xi
      compile options: '-I/usr/include -c'
      gcc: /tmp/tmploe9v3xi/source.c
      gcc /tmp/tmploe9v3xi/tmp/tmploe9v3xi/source.o -L/usr/lib -lcblas -o
/tmp/tmploe9v3xi/a.out.exe

/usr/lib/gcc/x86_64-pc-cygwin/9.3.0/../../../../x86_64-pc-cygwin/bin/ld:
cannot find -lcblas
      collect2: error: ld returned 1 exit status

/usr/lib/gcc/x86_64-pc-cygwin/9.3.0/../../../../x86_64-pc-cygwin/bin/ld:
cannot find -lcblas
      collect2: error: ld returned 1 exit status
      gcc /tmp/tmploe9v3xi/tmp/tmploe9v3xi/source.o -L/usr/lib -lblas -o
/tmp/tmploe9v3xi/a.out.exe
      customize UnixCCompiler
        FOUND:
          libraries = ['blas', 'blas']
          library_dirs = ['/usr/lib']
          include_dirs = ['/usr/include']
          language = c
          define_macros = [('HAVE_CBLAS', None)]

        FOUND:
          define_macros = [('NO_ATLAS_INFO', 1), ('HAVE_CBLAS', None)]
          libraries = ['blas', 'blas']
          library_dirs = ['/usr/lib']
          include_dirs = ['/usr/include']
          language = c

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

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

      openblas_clapack_info:
      customize UnixCCompiler
      customize UnixCCompiler
        libraries openblas,lapack not found in ['/usr/local/lib',
'/usr/lib', '/usr/lib/']
        NOT AVAILABLE

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

      atlas_3_10_info:
      customize UnixCCompiler
        libraries satlas,satlas not found in /usr/local/lib
      customize UnixCCompiler
        libraries lapack_atlas not found in /usr/local/lib
      customize UnixCCompiler
        libraries satlas,satlas not found in /usr/lib
      customize UnixCCompiler
        libraries lapack_atlas not found in /usr/lib
      customize UnixCCompiler
        libraries satlas,satlas not found in /usr/lib/
      customize UnixCCompiler
        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
      customize UnixCCompiler
        libraries ptf77blas,ptcblas,atlas not found in /usr/local/lib
      customize UnixCCompiler
        libraries lapack_atlas not found in /usr/local/lib
      customize UnixCCompiler
        libraries ptf77blas,ptcblas,atlas not found in /usr/lib
      customize UnixCCompiler
        libraries lapack_atlas not found in /usr/lib
      customize UnixCCompiler
        libraries ptf77blas,ptcblas,atlas not found in /usr/lib/
      customize UnixCCompiler
        libraries lapack_atlas not found in /usr/lib/
      <class 'numpy.distutils.system_info.atlas_threads_info'>
        NOT AVAILABLE

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

      lapack_info:
      customize UnixCCompiler
      customize UnixCCompiler
        FOUND:
          libraries = ['lapack', 'lapack']
          library_dirs = ['/usr/lib']
          language = f77

        FOUND:
          define_macros = [('NO_ATLAS_INFO', 1), ('HAVE_CBLAS', None)]
          libraries = ['lapack', 'lapack', 'blas', 'blas']
          library_dirs = ['/usr/lib']
          language = c
          include_dirs = ['/usr/include']

      /usr/lib/python3.7/distutils/dist.py:274: UserWarning: Unknown
distribution option: 'define_macros'
        warnings.warn(msg)
      running install
      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-3.1.5-x86_64-3.7
      creating build/src.cygwin-3.1.5-x86_64-3.7/numpy
      creating build/src.cygwin-3.1.5-x86_64-3.7/numpy/distutils
      building library "npymath" sources
      get_default_fcompiler: matching types: '['gnu', 'intelv', 'absoft',
'compaqv', 'intelev', 'gnu95', 'g95']'
      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 /usr/bin/DF
      customize IntelItaniumVisualFCompiler
      Could not locate executable efl
      customize Gnu95FCompiler
      Found executable /usr/bin/gfortran
      customize Gnu95FCompiler
      customize Gnu95FCompiler using config
      C compiler: gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv
-O3 -Wall -ggdb -O2 -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1
-ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
-fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1

      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/python3.7m
-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 -ggdb -O2 -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1
-ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
-fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1

      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/python3.7m
-c'
      gcc: _configtest.c
      _configtest.c:1:5: warning: conflicting types for built-in function
‘exp’; expected ‘double(double)’ [-Wbuiltin-declaration-mismatch]
          1 | int exp (void);
            |     ^~~
      _configtest.c:1:1: note: ‘exp’ is declared in header ‘<math.h>’
        +++ |+#include <math.h>
          1 | int exp (void);
      gcc _configtest.o -o _configtest.exe
      success!
      removing: _configtest.c _configtest.o _configtest.exe
      creating build/src.cygwin-3.1.5-x86_64-3.7/numpy/core
      creating build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src
      creating build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npymath
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npymath/npy_math_internal.h
        adding 'build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npymath'
to include_dirs.
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npymath/ieee754.c
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npymath/npy_math_complex.c
      None - nothing done with h_files =
['build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npymath/npy_math_internal.h']
      building library "npysort" sources
      creating build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npysort
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npysort/quicksort.c
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npysort/mergesort.c
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npysort/heapsort.c
      creating build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/private
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/private/npy_partition.h
        adding 'build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/private'
to include_dirs.
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npysort/selection.c
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/private/npy_binsearch.h
      conv_template:>
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/npysort/binsearch.c
      None - nothing done with h_files =
['build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/private/npy_partition.h',
'build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/src/private/npy_binsearch.h']
      building extension "numpy.core._dummy" sources
      Generating
build/src.cygwin-3.1.5-x86_64-3.7/numpy/core/include/numpy/config.h
      C compiler: gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv
-O3 -Wall -ggdb -O2 -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1
-ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
-fstack-protector-strong --param=ssp-buffer-size=4
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/build=/usr/src/debug/python37-3.7.7-1
-fdebug-prefix-map=/cygdrive/d/cyg_pub/devel/python/python37/python37-3.7.7-1.x86_64/src/Python-3.7.7=/usr/src/debug/python37-3.7.7-1

      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/python3.7m
-c'
      gcc: _configtest.c
      _configtest.c:1:10: fatal error: Python.h: No such file or directory
          1 | #include <Python.h>
            |          ^~~~~~~~~~
      compilation terminated.
      _configtest.c:1:10: fatal error: Python.h: No such file or directory
          1 | #include <Python.h>
            |          ^~~~~~~~~~
      compilation terminated.
      failure.
      removing: _configtest.c _configtest.o
      Traceback (most recent call last):
        File "<string>", line 1, in <module>
        File "/tmp/pip-install-wizs3z2z/numpy/setup.py", line 394, in
<module>
          setup_package()
        File "/tmp/pip-install-wizs3z2z/numpy/setup.py", line 386, in
setup_package
          setup(**metadata)
        File "/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/core.py",
line 169, in setup
          return old_setup(**new_attr)
        File "/usr/lib/python3.7/site-packages/setuptools/__init__.py",
line 144, in setup
          return distutils.core.setup(**attrs)
        File "/usr/lib/python3.7/distutils/core.py", line 148, in setup
          dist.run_commands()
        File "/usr/lib/python3.7/distutils/dist.py", line 966, in
run_commands
          self.run_command(cmd)
        File "/usr/lib/python3.7/distutils/dist.py", line 985, in
run_command
          cmd_obj.run()
        File
"/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/command/install.py", line
62, in run
          r = self.setuptools_run()
        File
"/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/command/install.py", line
36, in setuptools_run
          return distutils_install.run(self)
        File "/usr/lib/python3.7/distutils/command/install.py", line 545,
in run
          self.run_command('build')
        File "/usr/lib/python3.7/distutils/cmd.py", line 313, in run_command
          self.distribution.run_command(command)
        File "/usr/lib/python3.7/distutils/dist.py", line 985, in
run_command
          cmd_obj.run()
        File
"/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/command/build.py", line
47, in run
          old_build.run(self)
        File "/usr/lib/python3.7/distutils/command/build.py", line 135, in
run
          self.run_command(cmd_name)
        File "/usr/lib/python3.7/distutils/cmd.py", line 313, in run_command
          self.distribution.run_command(command)
        File "/usr/lib/python3.7/distutils/dist.py", line 985, in
run_command
          cmd_obj.run()
        File
"/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/command/build_src.py",
line 148, in run
          self.build_sources()
        File
"/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/command/build_src.py",
line 165, in build_sources
          self.build_extension_sources(ext)
        File
"/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/command/build_src.py",
line 324, in build_extension_sources
          sources = self.generate_sources(sources, ext)
        File
"/tmp/pip-install-wizs3z2z/numpy/numpy/distutils/command/build_src.py",
line 377, in generate_sources
          source = func(extension, build_dir)
        File "numpy/core/setup.py", line 422, in generate_config_h
          moredefs, ignored = cocache.check_types(config_cmd, ext,
build_dir)
        File "numpy/core/setup.py", line 48, in check_types
          out = check_types(*a, **kw)
        File "numpy/core/setup.py", line 281, in check_types
          "install {0}-dev|{0}-devel.".format(python))
      SystemError: Cannot compile 'Python.h'. Perhaps you need to install
python-dev|python-devel.
      ----------------------------------------
  ERROR: Command errored out with exit status 1: /usr/bin/python3.7 -u -c
'import sys, setuptools, tokenize; sys.argv[0] =
'"'"'/tmp/pip-install-wizs3z2z/numpy/setup.py'"'"';
__file__='"'"'/tmp/pip-install-wizs3z2z/numpy/setup.py'"'"';f=getattr(tokenize,
'"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"',
'"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))'
install --record /tmp/pip-record-qmbtrkjp/install-record.txt
--single-version-externally-managed --prefix
/tmp/pip-build-env-u0tmgezi/overlay --compile --install-headers
/tmp/pip-build-env-u0tmgezi/overlay/include/python3.7m/numpy Check the logs
for full command output.
  ----------------------------------------
ERROR: Command errored out with exit status 1: /usr/bin/python3.7
/usr/lib/python3.7/site-packages/pip install --ignore-installed --no-user
--prefix /tmp/pip-build-env-u0tmgezi/overlay --no-warn-script-location
--no-binary :none: --only-binary :none: -i https://pypi.org/simple -- wheel
setuptools 'Cython>=0.29.18' 'numpy==1.14.5; python_version=='"'"'3.6'"'"'
and platform_system!='"'"'AIX'"'"'' 'numpy==1.14.5;
python_version=='"'"'3.7'"'"' and platform_system!='"'"'AIX'"'"''
'numpy==1.17.3; python_version>='"'"'3.8'"'"' and
platform_system!='"'"'AIX'"'"'' 'numpy==1.16.0;
python_version=='"'"'3.6'"'"' and platform_system=='"'"'AIX'"'"''
'numpy==1.16.0; python_version=='"'"'3.7'"'"' and
platform_system=='"'"'AIX'"'"'' 'numpy==1.17.3;
python_version>='"'"'3.8'"'"' and platform_system=='"'"'AIX'"'"''
'pybind11>=2.4.3' Check the logs for full command output.

$
==================

On Sun, Jun 21, 2020 at 12:37 PM Brian Inglis <
Brian.Inglis@systematicsw.ab.ca> wrote:

> On 2020-06-21 12:31, My Name via Cygwin wrote:
> > (M.A., I've figured out how to reply to the Cygwin Mailing List on these.
> > If you'd like me to remove your name from the list of addressees in my
> > future emails, please let me know? I have not found comprehensive docs
> for
> > this mailing-list software, so I'm clueless.)
> >
> > I was delighted when Numpy first showed up as an official Cygwin Package
> > and am using Numpy in Python 3.7 in Cygwin now. I've realized that the
> > latest Cygwin versions of Python (now 3.8) are often incomplete, but
> that's
> > no problem for me. I'm also able to use Sympy in Cygwin by installing
> Sympy
> > via Pip in python3.7 in Cygwin.
> >
> > Scipy includes functions outside Numpy and Sympy that would be useful to
> me
> > at least, and I regularly rely on JupyterLab; so for those, I've been
> > resorting to Windows 10 versions of Python3.
> >
> > I should have clarified in my original post in this thread, when I did
> > happen to have success installing full Scipy in Cygwin, it was with this
> > command:
> >
> > $ python3.7 -m pip install scipy
> >
> > When I did have that success installing Scipy in Cygwin, I later realized
> > that whether Cygwin package gcc-fortran was installed locally made a
> > difference. Without gcc-fortran installed locally, the pip command would
> > fail to install Scipy. When I run that pip command now, I don't
> comprehend
> > the output, but I recognize that the Scipy installation has failed, even
> > though I do have Cygwin's gcc-fortran installed:
> >
> > ==================================
> > $ python3.7 -m pip install scipy
> > Collecting scipy
> >   Downloading scipy-1.5.0.tar.gz (25.6 MB)
> >      |████████████████████████████████| 25.6 MB 11.8 MB/s
> >   Installing build dependencies ... done
> >   Getting requirements to build wheel ... done
> >     Preparing wheel metadata ... error
> >     ERROR: Command errored out with exit status 1:
> >      command: /usr/bin/python3.7
> > /usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py
> > prepare_metadata_for_build_wheel /tmp/tmpc3ao3jht
> >          cwd: /tmp/pip-install-593dlngp/scipy
> >     Complete output (137 lines):
> >     lapack_opt_info:
> >     lapack_mkl_info:
> >     customize UnixCCompiler
> >       libraries mkl_rt not found in ['/usr/local/lib', '/usr/lib',
> > '/usr/lib/']
> >       NOT AVAILABLE
> >
> >     openblas_lapack_info:
> >     customize UnixCCompiler
> >     customize UnixCCompiler
> >       libraries openblas not found in ['/usr/local/lib', '/usr/lib',
> > '/usr/lib/']
> >       NOT AVAILABLE
> >
> >     openblas_clapack_info:
> >     customize UnixCCompiler
> >     customize UnixCCompiler
> >       libraries openblas,lapack not found in ['/usr/local/lib',
> '/usr/lib',
> > '/usr/lib/']
> >       NOT AVAILABLE
> >
> >     atlas_3_10_threads_info:
> >     Setting PTATLAS=ATLAS
> >     customize UnixCCompiler
> >       libraries tatlas,tatlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries tatlas,tatlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries tatlas,tatlas not found in /usr/lib/
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/lib/
> >     <class 'numpy.distutils.system_info.atlas_3_10_threads_info'>
> >       NOT AVAILABLE
> >
> >     atlas_3_10_info:
> >     customize UnixCCompiler
> >       libraries satlas,satlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries satlas,satlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries satlas,satlas not found in /usr/lib/
> >     customize UnixCCompiler
> >       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
> >     customize UnixCCompiler
> >       libraries ptf77blas,ptcblas,atlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries ptf77blas,ptcblas,atlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries ptf77blas,ptcblas,atlas not found in /usr/lib/
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/lib/
> >     <class 'numpy.distutils.system_info.atlas_threads_info'>
> >       NOT AVAILABLE
> >
> >     atlas_info:
> >     customize UnixCCompiler
> >       libraries f77blas,cblas,atlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/local/lib
> >     customize UnixCCompiler
> >       libraries f77blas,cblas,atlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/lib
> >     customize UnixCCompiler
> >       libraries f77blas,cblas,atlas not found in /usr/lib/
> >     customize UnixCCompiler
> >       libraries lapack_atlas not found in /usr/lib/
> >     <class 'numpy.distutils.system_info.atlas_info'>
> >       NOT AVAILABLE
> >
> >     lapack_info:
> >     customize UnixCCompiler
> >       libraries lapack not found in ['/usr/local/lib', '/usr/lib',
> > '/usr/lib/']
> >       NOT AVAILABLE
> >
> >     lapack_src_info:
> >       NOT AVAILABLE
> >
> >       NOT AVAILABLE
> >
> >     setup.py:462: UserWarning: Unrecognized setuptools command
> ('dist_info
> > --egg-base /tmp/pip-modern-metadata-ib3nkeed'), proceeding with
> generating
> > Cython sources and expanding templates
> >       ' '.join(sys.argv[1:])))
> >     Running from SciPy source directory.
> >
> >
> /tmp/pip-build-env-znryb617/overlay/lib/python3.7/site-packages/numpy/distutils/system_info.py:624:
> > 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()
> >
> >
> /tmp/pip-build-env-znryb617/overlay/lib/python3.7/site-packages/numpy/distutils/system_info.py:624:
> > 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()
> >
> >
> /tmp/pip-build-env-znryb617/overlay/lib/python3.7/site-packages/numpy/distutils/system_info.py:624:
> > 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()
> >     Traceback (most recent call last):
> >       File
> > "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py",
> line
> > 280, in <module>
> >         main()
> >       File
> > "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py",
> line
> > 263, in main
> >         json_out['return_val'] = hook(**hook_input['kwargs'])
> >       File
> > "/usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py",
> line
> > 133, in prepare_metadata_for_build_wheel
> >         return hook(metadata_directory, config_settings)
> >       File
> >
> "/tmp/pip-build-env-znryb617/overlay/lib/python3.7/site-packages/setuptools/build_meta.py",
> > line 157, in prepare_metadata_for_build_wheel
> >         self.run_setup()
> >       File
> >
> "/tmp/pip-build-env-znryb617/overlay/lib/python3.7/site-packages/setuptools/build_meta.py",
> > line 249, in run_setup
> >         self).run_setup(setup_script=setup_script)
> >       File
> >
> "/tmp/pip-build-env-znryb617/overlay/lib/python3.7/site-packages/setuptools/build_meta.py",
> > line 142, in run_setup
> >         exec(compile(code, __file__, 'exec'), locals())
> >       File "setup.py", line 583, in <module>
> >         setup_package()
> >       File "setup.py", line 579, in setup_package
> >         setup(**metadata)
> >       File
> >
> "/tmp/pip-build-env-znryb617/overlay/lib/python3.7/site-packages/numpy/distutils/core.py",
> > line 135, in setup
> >         config = configuration()
> >       File "setup.py", line 477, in configuration
> >         raise NotFoundError(msg)
> >     numpy.distutils.system_info.NotFoundError: No lapack/blas resources
> > found.
> >     ----------------------------------------
> > ERROR: Command errored out with exit status 1: /usr/bin/python3.7
> > /usr/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py
> > prepare_metadata_for_build_wheel /tmp/tmpc3ao3jht Check the logs for full
> > command output.
>
> > Going by an old memory of mine, I recall that parts of Scipy rely on
> BLAS,
> > https://en.wikipedia.org/wiki/Basic_Linear_Algebra_Subprograms, and I
> read
> > somewhere that that dependency adds to the difficulty of porting Scipy to
> > new platforms.
> Try installing or upgrading liblapack-devel liblapack-doc libopenblas
> openblas-doc and see how far that gets you.
> I remember coming across atlas elsewhere, but only know it provides some
> tuned
> BLAS and LAPACK routines.
>
> --
> Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
>
> This email may be disturbing to some readers as it contains
> too much technical detail. Reader discretion is advised.
> [Data in IEC units and prefixes, physical quantities in SI.]
> --
> Problem reports:      https://cygwin.com/problems.html
> FAQ:                  https://cygwin.com/faq/
> Documentation:        https://cygwin.com/docs.html
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>