我无法安装任何软件包。我甚至尝试更新pip和setuptools。我多次尝试卸载和重新安装python，但仍然出现相同的错误。我之前有python 3.8(32位(，当时运行良好。然而，我需要64位的tensorflow，所以我卸载了我得到的最新(3.9(64位版本。我的Windows是64位的，所以没有问题。我得到的错误，
C:UsersAMIT(Home)>pip 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:usersamit(home)appdatalocalprogramspythonpython39python.exe' 'c:usersamit(home)appdatalocalprogramspythonpython39libsite-packagespip_vendorpep517_in_process.py' prepare_metadata_for_build_wheel 'C:UsersAMIT(Home)AppDataLocalTemptmpq2gtxfef'
cwd: C:UsersAMIT(Home)AppDataLocalTemppip-install-g8tkhg_ynumpy
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/randombit_generator.pyx
Processing numpy/randommtrand.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\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
blis_info:
libraries blis not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
openblas_info:
libraries openblas not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\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\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
atlas_3_10_blas_info:
libraries satlas not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
atlas_blas_threads_info:
Setting PTATLAS=ATLAS
libraries ptf77blas,ptcblas,atlas not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
atlas_blas_info:
libraries f77blas,cblas,atlas not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
accelerate_info:
NOT AVAILABLE
C:UsersAMIT(Home)AppDataLocalTemppip-install-g8tkhg_ynumpynumpydistutilssystem_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\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
C:UsersAMIT(Home)AppDataLocalTemppip-install-g8tkhg_ynumpynumpydistutilssystem_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:UsersAMIT(Home)AppDataLocalTemppip-install-g8tkhg_ynumpynumpydistutilssystem_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\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
openblas_lapack_info:
libraries openblas not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
openblas_clapack_info:
libraries openblas,lapack not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
flame_info:
libraries flame not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
atlas_3_10_threads_info:
Setting PTATLAS=ATLAS
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries tatlas,tatlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries lapack_atlas not found in C:
libraries tatlas,tatlas not found in C:
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
libraries tatlas,tatlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
<class 'numpy.distutils.system_info.atlas_3_10_threads_info'>
NOT AVAILABLE
atlas_3_10_info:
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries satlas,satlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries lapack_atlas not found in C:
libraries satlas,satlas not found in C:
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
libraries satlas,satlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
<class 'numpy.distutils.system_info.atlas_3_10_info'>
NOT AVAILABLE
atlas_threads_info:
Setting PTATLAS=ATLAS
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries ptf77blas,ptcblas,atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries lapack_atlas not found in C:
libraries ptf77blas,ptcblas,atlas not found in C:
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
libraries ptf77blas,ptcblas,atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
<class 'numpy.distutils.system_info.atlas_threads_info'>
NOT AVAILABLE
atlas_info:
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries f77blas,cblas,atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39lib
libraries lapack_atlas not found in C:
libraries f77blas,cblas,atlas not found in C:
libraries lapack_atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
libraries f77blas,cblas,atlas not found in c:usersamit(home)appdatalocalprogramspythonpython39libs
<class 'numpy.distutils.system_info.atlas_info'>
NOT AVAILABLE
lapack_info:
libraries lapack not found in ['c:\users\amit(home)\appdata\local\programs\python\python39\lib', 'C:\', 'c:\users\amit(home)\appdata\local\programs\python\python39\libs']
NOT AVAILABLE
C:UsersAMIT(Home)AppDataLocalTemppip-install-g8tkhg_ynumpynumpydistutilssystem_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:UsersAMIT(Home)AppDataLocalTemppip-install-g8tkhg_ynumpynumpydistutilssystem_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:usersamit(home)appdatalocalprogramspythonpython39libdistutilsdist.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 buildsrc.win-amd64-3.9
creating buildsrc.win-amd64-3.9numpy
creating buildsrc.win-amd64-3.9numpydistutils
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/
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:usersamit(home)appdatalocalprogramspythonpython39python.exe' 'c:usersamit(home)appdatalocalprogramspythonpython39libsite-packagespip_vendorpep517_in_process.py' prepare_metadata_for_build_wheel 'C:UsersAMIT(Home)AppDataLocalTemptmpq2gtxfef' Check the logs for full command output.
我无法安装任何软件包。
否，如果您读取错误消息，则无法安装需要编译的包(因为它们包含本机代码(。我有理由相信纯python包会很好地运行。
在Windows上，本机软件包通常作为预构建的二进制文件("二进制轮子"(提供，因为大多数系统没有构建工具。
然而，虽然纯python包通常是多版本的，但需要为python的每个单独版本单独构建和分发二进制轮子。
由于Python 3.9是最近发布的(它已经发布了2周(，所以包的维护人员可能没有时间&机会问答；A他们各自的包裹还没有，因此还没有建立相应的轮子进行分配。
因此，您的解决方案是：
-
生活在边缘，正如错误消息告诉你
错误：需要Microsoft Visual C++14.0。用"；"Visual Studio构建工具"：https://visualstudio.microsoft.com/downloads/
通过安装MSVC++，您将能够(尝试(在本地编译二进制包，这可能会成功，也可能不会成功，因为这些包可能与3.9不兼容，因为它们支持
-
生活更安全，删除3.9并安装3.8，你想要的软件包可能有轮子
-
等到你想要的软件包发布3.9 的二进制轮子
-
安装一个"；科学分配"；它通常会处理整个事情，例如蟒蛇