pip3 install numpy 错误时出现错误：命令错误，退出状态为 1：答案

【问题标题】：Getting error while pip3 install numpy ERROR: Command errored out with exit status 1:pip3 install numpy 错误时出现错误：命令错误，退出状态为 1：
【发布时间】：2020-10-28 10:14:25
【问题描述】：

错误：命令出错，退出状态为 1：命令：'c:\users\viswan\appdata\local\programs\python\python39\python.exe''c:\users\viswan\appdata\local\programs\python\python39\lib\site-packages\pip_vendor\ pep517_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\Viswan\AppData\Local\Temp\tmphwm4yx5e' cwd: C:\Users\Viswan\AppData\Local\Temp\pip-install-pe_1r20r\numpy 完整输出（208 行）：从 numpy 源目录运行。 setup.py:470: UserWarning: Unrecognized setuptools 命令，继续生成 Cython 源和扩展模板 run_build = parse_setuppy_commands() 处理 numpy/random_bounded_integers.pxd.in 处理 numpy/random\bit_generator.pyx 处理 numpy/random\mtrand.pyx 处理 numpy/random_bounded_integers.pyx.in 处理 numpy/random_common.pyx 处理 numpy/random_generator.pyx 处理 numpy/random_mt19937.pyx 处理 numpy/random_pcg64.pyx 处理 numpy/random_philox.pyx 处理 numpy/random_sfc64.pyx Cythonizing 来源 blas_opt_info： blas_mkl_info： numpy.distutils 中没有名为“numpy.distutils._msvccompiler”的模块；从 distutils 尝试自定义 MSVCCompiler 在 ['c:\users\viswan\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\viswan\appdata\local\programs\python\python39 中找不到库 mkl_rt \libs'，'C:\Users\Viswan\anaconda3\Library\lib'] 不可用

blis_info:
  libraries blis not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

openblas_info:
  libraries openblas not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
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\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

atlas_3_10_blas_info:
  libraries satlas not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

atlas_blas_threads_info:
Setting PTATLAS=ATLAS
  libraries ptf77blas,ptcblas,atlas not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

atlas_blas_info:
  libraries f77blas,cblas,atlas not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

accelerate_info:
  NOT AVAILABLE

C:\Users\Viswan\AppData\Local\Temp\pip-install-pe_1r20r\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\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

C:\Users\Viswan\AppData\Local\Temp\pip-install-pe_1r20r\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\Viswan\AppData\Local\Temp\pip-install-pe_1r20r\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\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

openblas_lapack_info:
  libraries openblas not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

openblas_clapack_info:
  libraries openblas,lapack not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

flame_info:
  libraries flame not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

atlas_3_10_threads_info:
Setting PTATLAS=ATLAS
  libraries lapack_atlas not found in c:\users\viswan\appdata\local\programs\python\python39\lib
  libraries tatlas,tatlas not found in c:\users\viswan\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\viswan\appdata\local\programs\python\python39\libs
  libraries tatlas,tatlas not found in c:\users\viswan\appdata\local\programs\python\python39\libs
  libraries lapack_atlas not found in C:\Users\Viswan\anaconda3\Library\lib
  libraries tatlas,tatlas not found in C:\Users\Viswan\anaconda3\Library\lib
<class 'numpy.distutils.system_info.atlas_3_10_threads_info'>
  NOT AVAILABLE

atlas_3_10_info:
  libraries lapack_atlas not found in c:\users\viswan\appdata\local\programs\python\python39\lib
  libraries satlas,satlas not found in c:\users\viswan\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\viswan\appdata\local\programs\python\python39\libs
  libraries satlas,satlas not found in c:\users\viswan\appdata\local\programs\python\python39\libs
  libraries lapack_atlas not found in C:\Users\Viswan\anaconda3\Library\lib
  libraries satlas,satlas not found in C:\Users\Viswan\anaconda3\Library\lib
<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\viswan\appdata\local\programs\python\python39\lib
  libraries ptf77blas,ptcblas,atlas not found in c:\users\viswan\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\viswan\appdata\local\programs\python\python39\libs
  libraries ptf77blas,ptcblas,atlas not found in c:\users\viswan\appdata\local\programs\python\python39\libs
  libraries lapack_atlas not found in C:\Users\Viswan\anaconda3\Library\lib
  libraries ptf77blas,ptcblas,atlas not found in C:\Users\Viswan\anaconda3\Library\lib
<class 'numpy.distutils.system_info.atlas_threads_info'>
  NOT AVAILABLE

atlas_info:
  libraries lapack_atlas not found in c:\users\viswan\appdata\local\programs\python\python39\lib
  libraries f77blas,cblas,atlas not found in c:\users\viswan\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\viswan\appdata\local\programs\python\python39\libs
  libraries f77blas,cblas,atlas not found in c:\users\viswan\appdata\local\programs\python\python39\libs
  libraries lapack_atlas not found in C:\Users\Viswan\anaconda3\Library\lib
  libraries f77blas,cblas,atlas not found in C:\Users\Viswan\anaconda3\Library\lib
<class 'numpy.distutils.system_info.atlas_info'>
  NOT AVAILABLE

lapack_info:
  libraries lapack not found in ['c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\viswan\\appdata\\local\\programs\\python\\python39\\libs', 'C:\\Users\\Viswan\\anaconda3\\Library\\lib']
  NOT AVAILABLE

C:\Users\Viswan\AppData\Local\Temp\pip-install-pe_1r20r\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\Viswan\AppData\Local\Temp\pip-install-pe_1r20r\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\viswan\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：'c:\users\viswan\appdata\local\programs\python\python39\python.exe''c:\users\viswan\appdata\local\programs\python \python39\lib\site-packages\pip_vendor\pep517_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\Viswan\AppData\Local\Temp\tmphwm4yx5e' 检查日志以获取完整的命令输出。

我是一个初学者。确切的问题是什么以及如何解决它？

【问题讨论】：

这是因为 c++ 14.0 已经过时了：检查这个stackoverflow.com/questions/29846087/…

标签： python

【解决方案1】：

这是因为您的系统中缺少 C++ 14.0，朋友。所以安装它然后重试，它不会显示错误。

https://visualstudio.microsoft.com/downloads/ 使用此链接下载 C++ 14

如果它仍然不起作用，请尝试我放弃的方法

https://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy

打开上面给出的链接并下载所需版本的numpy。还要检查 python 的版本。如果您在 Win64 中使用 Python 3.9，请参阅此
```
numpy‑1.20.2+mkl‑cp39‑cp39‑win_amd64.whl
```
以管理员身份打开 CMD 并导航到安装 numpy 库的目录

然后输入

pip install <name of the file you downloaded>

在这种情况下

pip install numpy‑1.20.2+mkl‑cp39‑cp39‑win_amd64.whl

【讨论】：

您好，欢迎来到 StackOverflow！这对以前的答案有何改进？

【解决方案2】：

原因和解决方法都在那里：

错误：需要 Microsoft Visual C++ 14.0。使用“Visual Studio 构建工具”获取它：https://visualstudio.microsoft.com/downloads/

【讨论】：