无法为Python安装新软件包（Python 3.9.0，Windows 10）
为了进行升级和清理，我重置了PC并安装了Windows10。很自然地，我在频繁使用Python的同时安装了Python。但是，当我尝试使用命令“ pip
install matplotlib”安装MatPlotLib时，它显示一条红色错误消息：
C:\Users\majkl\AppData\Local\Programs\Python\Python39\Scripts>pip install matplotlibCollecting matplotlib
Using cached matplotlib-3.3.2.tar.gz (37.9 MB)
ERROR: Command errored out with exit status 1:
command: 'c:\users\majkl\appdata\local\programs\python\python39\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\majkl\\AppData\\Local\\Temp\\pip-install-ex__f7yd\\matplotlib\\setup.py'"'"'; __file__='"'"'C:\\Users\\majkl\\AppData\\Local\\Temp\\pip-install-ex__f7yd\\matplotlib\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\majkl\AppData\Local\Temp\pip-pip-egg-info-my5odhue'
cwd: C:\Users\majkl\AppData\Local\Temp\pip-install-ex__f7yd\matplotlib\
Complete output (248 lines):
ERROR: Command errored out with exit status 1:
command: 'c:\users\majkl\appdata\local\programs\python\python39\python.exe' 'c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\majkl\AppData\Local\Temp\tmp1jo_3g_p'
cwd: C:\Users\majkl\AppData\Local\Temp\pip-wheel-5qwibsn2\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\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
blis_info:
libraries blis not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
openblas_info:
libraries openblas not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\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\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
atlas_3_10_blas_info:
libraries satlas not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
atlas_blas_threads_info:
Setting PTATLAS=ATLAS
libraries ptf77blas,ptcblas,atlas not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
atlas_blas_info:
libraries f77blas,cblas,atlas not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
accelerate_info:
NOT AVAILABLE
C:\Users\majkl\AppData\Local\Temp\pip-wheel-5qwibsn2\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\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
C:\Users\majkl\AppData\Local\Temp\pip-wheel-5qwibsn2\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\majkl\AppData\Local\Temp\pip-wheel-5qwibsn2\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\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
openblas_lapack_info:
libraries openblas not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
openblas_clapack_info:
libraries openblas,lapack not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
flame_info:
libraries flame not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
atlas_3_10_threads_info:
Setting PTATLAS=ATLAS
libraries lapack_atlas not found in c:\users\majkl\appdata\local\programs\python\python39\lib
libraries tatlas,tatlas not found in c:\users\majkl\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\majkl\appdata\local\programs\python\python39\libs
libraries tatlas,tatlas not found in c:\users\majkl\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\majkl\appdata\local\programs\python\python39\lib
libraries satlas,satlas not found in c:\users\majkl\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\majkl\appdata\local\programs\python\python39\libs
libraries satlas,satlas not found in c:\users\majkl\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\majkl\appdata\local\programs\python\python39\lib
libraries ptf77blas,ptcblas,atlas not found in c:\users\majkl\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\majkl\appdata\local\programs\python\python39\libs
libraries ptf77blas,ptcblas,atlas not found in c:\users\majkl\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\majkl\appdata\local\programs\python\python39\lib
libraries f77blas,cblas,atlas not found in c:\users\majkl\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\majkl\appdata\local\programs\python\python39\libs
libraries f77blas,cblas,atlas not found in c:\users\majkl\appdata\local\programs\python\python39\libs
<class 'numpy.distutils.system_info.atlas_info'>
NOT AVAILABLE
lapack_info:
libraries lapack not found in ['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\lib', 'C:\\', 'c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\libs']
NOT AVAILABLE
C:\Users\majkl\AppData\Local\Temp\pip-wheel-5qwibsn2\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\majkl\AppData\Local\Temp\pip-wheel-5qwibsn2\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\majkl\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/
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\majkl\appdata\local\programs\python\python39\python.exe' 'c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\majkl\AppData\Local\Temp\tmp1jo_3g_p' Check the logs for full command output.
Traceback (most recent call last):
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\setuptools\installer.py", line 128, in fetch_build_egg
subprocess.check_call(cmd)
File "c:\users\majkl\appdata\local\programs\python\python39\lib\subprocess.py", line 373, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\majkl\\AppData\\Local\\Temp\\tmp6fv0ox8i', '--quiet', 'numpy>=1.15']' returned non-zero exit status 1.
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\majkl\AppData\Local\Temp\pip-install-ex__f7yd\matplotlib\setup.py", line 242, in <module>
setup( # Finally, pass this all along to distutils to do the heavy lifting.
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\setuptools\__init__.py", line 164, in setup
_install_setup_requires(attrs)
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\setuptools\__init__.py", line 159, in _install_setup_requires
dist.fetch_build_eggs(dist.setup_requires)
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\setuptools\dist.py", line 699, in fetch_build_eggs
resolved_dists = pkg_resources.working_set.resolve(
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\pkg_resources\__init__.py", line 779, in resolve
dist = best[req.key] = env.best_match(
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\pkg_resources\__init__.py", line 1064, in best_match
return self.obtain(req, installer)
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\pkg_resources\__init__.py", line 1076, in obtain
return installer(requirement)
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\setuptools\dist.py", line 758, in fetch_build_egg
return fetch_build_egg(self, req)
File "c:\users\majkl\appdata\local\programs\python\python39\lib\site-packages\setuptools\installer.py", line 130, in fetch_build_egg
raise DistutilsError(str(e)) from e
distutils.errors.DistutilsError: Command '['c:\\users\\majkl\\appdata\\local\\programs\\python\\python39\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\majkl\\AppData\\Local\\Temp\\tmp6fv0ox8i', '--quiet', 'numpy>=1.15']' returned non-zero exit status 1.
Edit setup.cfg to change the build options; suppress output with --quiet.
BUILDING MATPLOTLIB
matplotlib: yes [3.3.2]
python: yes [3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC
v.1927 64 bit (AMD64)]]
platform: yes [win32]
sample_data: yes [installing]
tests: no [skipping due to configuration]
macosx: no [Mac OS-X only]
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
我要安装的所有其他软件包都执行相同的操作。我不知道该怎么做。我已经尝试过重新安装pip，Python，我已经尝试过通过conda安装软件包，但是似乎无法解决问题。任何帮助，将不胜感激。
回答：
Python 3.9甚至没有发布10天。据我所见，很多软件包还不支持Python 3.9。我认为您最好的选择是卸载Python 3.9，然后安装Python
3.8.6。如果您愿意，可以尝试以下操作以确保确定，但是我认为我不会工作。
pip intstall pipwinpipwin install <package name>
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