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Numpy 安装 Python Ver-3.9

本文介绍了Numpy 安装 Python Ver-3.9的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在尝试安装 NumPy，但遇到了一个问题.我使用的 python 版本是 3.9，Windows 版本是 10.错误如下:

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:

C:>pip3 安装 numpy收集 numpy

C:>pip3 install numpyCollecting numpy

使用缓存的 numpy-1.19.2.zip (7.3 MB)

Using cached numpy-1.19.2.zip (7.3 MB)

正在安装构建依赖项...完成

Installing build dependencies ... done

获得构建轮子的要求......完成

Getting requirements to build wheel ... done

正在准备车轮元数据...错误

Preparing wheel metadata ... error

错误:命令出错，退出状态为 1:

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
<class 'numpy.distutils.system_info.atlas_3_10_threads_info'>
  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
<class 'numpy.distutils.system_info.atlas_3_10_info'>
  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
<class 'numpy.distutils.system_info.atlas_threads_info'>
  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
<class 'numpy.distutils.system_info.atlas_info'>
  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 "npymath" sources
error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://visualstudio.microsoft.com/downloads/
----------------------------------------

错误:命令出错，退出状态为 1:

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\python.exe'

'c:\users\arr48\appdata\local\programs\python\python39\lib\site-

'c:\users\arr48\appdata\local\programs\python\python39\lib\site-

packages\pip_vendor\pep517_in_process.py' prepare_metadata_for_build_wheel

packages\pip_vendor\pep517_in_process.py' prepare_metadata_for_build_wheel

'C:\Users\arr48\AppData\Local\Temp\tmp0g3__7ax' 检查日志以获取完整的命令输出.

'C:\Users\arr48\AppData\Local\Temp\tmp0g3__7ax' Check the logs for full command output.

推荐答案

numpy 包尚未包含 Python 3.9 的二进制文件，因此 pip 尝试从源代码编译.这(当然)要求您拥有适当的 C 编译器，如错误消息所述.这并不简单.pip 需要 Visual C++ 14.2.Microsoft 唯一可用的版本是 Visual C++ 2019，也就是第 16 版，它不适用于 pip.您可以从 https://visualstudio.microsoft.com 获取 Visual C++ 2015，也就是第 14 版/vs/older-downloads/.但似乎只有最新版本是免费的.您可能需要为旧版本付费.即便如此，拥有编译器还不够.你必须配置它，这不适合胆小的人.

The numpy package does not yet include binaries for Python 3.9, so pip tries to compile from source. This (of course) requires you to have the appropriate C compiler, as the error message says. That is not straightforward. pip wants Visual C++ 14.2. The only version readily available from Microsoft is Visual C++ 2019, a.k.a. version 16, which won't work with pip. You can get Visual C++ 2015, a.k.a version 14, from https://visualstudio.microsoft.com/vs/older-downloads/. But it appears that only the latest version is free. You may have to pay for an older version. Even then, having the compiler isn't enough. You have to configure it, and that is not for the faint-hearted.

相反，请从 Christoph Gohlke 的网站 https://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy.官方 scipy.org 文档推荐了这个站点.显然，您必须选择与您的系统匹配的 .whl 文件.

Instead, download a prepackaged binary wheel from Christoph Gohlke's site at https://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy. The official scipy.org docs recommend this site. Obviously you must choose the .whl file that matches your system.

像这样使用 pip 安装轮子:

Install the wheel using pip like this:

pip install D:\Users\<user>\Downloads\numpy-1.19.2+mkl-cp39-cp39-win_amd64.whl

这篇关于Numpy 安装 Python Ver-3.9的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

07-26 15:07
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