title: Numpy Installation for Python Ver-3.9
body: <p>I'm trying to install NumPy but I'm facing an issue.
  The python ver I'm using is 3.9 and Windows version is 10.
  The error is as follows:</p>
  <pre><code>C:\&gt;pip3 install numpy
  Collecting numpy
  
  Using cached numpy-1.19.2.zip (7.3 MB)
  
  Installing build dependencies ... done
  
  Getting requirements to build wheel ... done
  
  Preparing wheel metadata ... error
  
  ERROR: Command errored out with exit status 1:
  
   command: 'c:\users\arr48\appdata\local\programs\python\python39\python.exe' 'c:\users\arr48\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\arr48\AppData\Local\Temp\tmp0g3__7ax'
       cwd: C:\Users\arr48\AppData\Local\Temp\pip-install-fincp1mj\numpy
  Complete output (200 lines):
  Running from numpy source directory.
  setup.py:470: UserWarning: Unrecognized setuptools command, proceeding with generating Cython sources and expanding templates
    run_build = parse_setuppy_commands()
  Processing numpy/random\_bounded_integers.pxd.in
  Processing numpy/random\bit_generator.pyx
  Processing numpy/random\mtrand.pyx
  Processing numpy/random\_bounded_integers.pyx.in
  Processing numpy/random\_common.pyx
  Processing numpy/random\_generator.pyx
  Processing numpy/random\_mt19937.pyx
  Processing numpy/random\_pcg64.pyx
  Processing numpy/random\_philox.pyx
  Processing numpy/random\_sfc64.pyx
  Cythonizing sources
  blas_opt_info:
  blas_mkl_info:
  No module named 'numpy.distutils._msvccompiler' in numpy.distutils; trying from distutils
  customize MSVCCompiler
    libraries mkl_rt not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  blis_info:
    libraries blis not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  openblas_info:
    libraries openblas not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
  get_default_fcompiler: matching types: '['gnu', 'intelv', 'absoft', 'compaqv', 'intelev', 'gnu95', 'g95', 'intelvem', 'intelem', 'flang']'
  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
  Could not locate executable 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
  customize IntelEM64VisualFCompiler
  customize IntelEM64TFCompiler
  Could not locate executable efort
  Could not locate executable efc
  customize PGroupFlangCompiler
  Could not locate executable flang
  don't know how to compile Fortran code on platform 'nt'
    NOT AVAILABLE
  
  atlas_3_10_blas_threads_info:
  Setting PTATLAS=ATLAS
    libraries tatlas not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  atlas_3_10_blas_info:
    libraries satlas not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  atlas_blas_threads_info:
  Setting PTATLAS=ATLAS
    libraries ptf77blas,ptcblas,atlas not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  atlas_blas_info:
    libraries f77blas,cblas,atlas not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  accelerate_info:
    NOT AVAILABLE
  
  C:\Users\arr48\AppData\Local\Temp\pip-install-fincp1mj\numpy\numpy\distutils\system_info.py:1914: UserWarning:
      Optimized (vendor) Blas libraries are not found.
      Falls back to netlib Blas library which has worse performance.
      A better performance should be easily gained by switching
      Blas library.
    if self._calc_info(blas):
  blas_info:
    libraries blas not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  C:\Users\arr48\AppData\Local\Temp\pip-install-fincp1mj\numpy\numpy\distutils\system_info.py:1914: 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.
    if self._calc_info(blas):
  blas_src_info:
    NOT AVAILABLE
  
  C:\Users\arr48\AppData\Local\Temp\pip-install-fincp1mj\numpy\numpy\distutils\system_info.py:1914: 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.
    if self._calc_info(blas):
    NOT AVAILABLE
  
  non-existing path in 'numpy\\distutils': 'site.cfg'
  lapack_opt_info:
  lapack_mkl_info:
    libraries mkl_rt not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  openblas_lapack_info:
    libraries openblas not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  openblas_clapack_info:
    libraries openblas,lapack not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  flame_info:
    libraries flame not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  atlas_3_10_threads_info:
  Setting PTATLAS=ATLAS
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries tatlas,tatlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries lapack_atlas not found in C:\
    libraries tatlas,tatlas not found in C:\
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
    libraries tatlas,tatlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
  &lt;class 'numpy.distutils.system_info.atlas_3_10_threads_info'&gt;
    NOT AVAILABLE
  
  atlas_3_10_info:
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries satlas,satlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries lapack_atlas not found in C:\
    libraries satlas,satlas not found in C:\
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
    libraries satlas,satlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
  &lt;class 'numpy.distutils.system_info.atlas_3_10_info'&gt;
    NOT AVAILABLE
  
  atlas_threads_info:
  Setting PTATLAS=ATLAS
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries ptf77blas,ptcblas,atlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries lapack_atlas not found in C:\
    libraries ptf77blas,ptcblas,atlas not found in C:\
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
    libraries ptf77blas,ptcblas,atlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
  &lt;class 'numpy.distutils.system_info.atlas_threads_info'&gt;
    NOT AVAILABLE
  
  atlas_info:
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries f77blas,cblas,atlas not found in c:\users\arr48\appdata\local\programs\python\python39\lib
    libraries lapack_atlas not found in C:\
    libraries f77blas,cblas,atlas not found in C:\
    libraries lapack_atlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
    libraries f77blas,cblas,atlas not found in c:\users\arr48\appdata\local\programs\python\python39\libs
  &lt;class 'numpy.distutils.system_info.atlas_info'&gt;
    NOT AVAILABLE
  
  lapack_info:
    libraries lapack not found in ['c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\arr48\\appdata\\local\\programs\\python\\python39\\libs']
    NOT AVAILABLE
  
  C:\Users\arr48\AppData\Local\Temp\pip-install-fincp1mj\numpy\numpy\distutils\system_info.py:1748: 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.
    return getattr(self, '_calc_info_{}'.format(name))()
  lapack_src_info:
    NOT AVAILABLE
  
  C:\Users\arr48\AppData\Local\Temp\pip-install-fincp1mj\numpy\numpy\distutils\system_info.py:1748: 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.
    return getattr(self, '_calc_info_{}'.format(name))()
    NOT AVAILABLE
  
  numpy_linalg_lapack_lite:
    FOUND:
      language = c
      define_macros = [('HAVE_BLAS_ILP64', None), ('BLAS_SYMBOL_SUFFIX', '64_')]
  
  c:\users\arr48\appdata\local\programs\python\python39\lib\distutils\dist.py:274: UserWarning: Unknown distribution option: 'define_macros'
    warnings.warn(msg)
  running dist_info
  running build_src
  build_src
  building py_modules sources
  creating build
  creating build\src.win-amd64-3.9
  creating build\src.win-amd64-3.9\numpy
  creating build\src.win-amd64-3.9\numpy\distutils
  building library &quot;npymath&quot; sources
  error: Microsoft Visual C++ 14.0 is required. Get it with &quot;Build Tools for Visual Studio&quot;: https://visualstudio.microsoft.com/downloads/
  ----------------------------------------
  ERROR: Command errored out with exit status 1: 
  
  'c:\users\arr48\appdata\local\programs\python\python39\python.exe' 
  
  'c:\users\arr48\appdata\local\programs\python\python39\lib\site-
  
  packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 
  
  'C:\Users\arr48\AppData\Local\Temp\tmp0g3__7ax' Check the logs for full command output.
  </code></pre>