问题描述
所以我最近升级到Python 3.9，并尝试安装某些库时-特别是pip install discord-我遇到以下错误：
ERROR: Command errored out with exit status 1:
command: 'c:\users\user\appdata\local\programs\python\python39\python.exe' 'c:\users\user\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\User\AppData\Local\Temp\tmprrfx0262'
cwd: C:\Users\User\AppData\Local\Temp\pip-install-qj3xz8wb\multidict
Complete output (40 lines):
**********************
* Accellerated build *
**********************
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-3.9
creating build\lib.win-amd64-3.9\multidict
copying multidict\_abc.py -> build\lib.win-amd64-3.9\multidict
copying multidict\_compat.py -> build\lib.win-amd64-3.9\multidict
copying multidict\_multidict_base.py -> build\lib.win-amd64-3.9\multidict
copying multidict\_multidict_py.py -> build\lib.win-amd64-3.9\multidict
copying multidict\__init__.py -> build\lib.win-amd64-3.9\multidict
running egg_info
writing multidict.egg-info\PKG-INFO
writing dependency_links to multidict.egg-info\dependency_links.txt
writing top-level names to multidict.egg-info\top_level.txt
reading manifest file 'multidict.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no prevIoUsly-included files matching '*.pyc' found anywhere in distribution
warning: no prevIoUsly-included files found matching 'multidict\_multidict.html'
warning: no prevIoUsly-included files found matching 'multidict\*.so'
warning: no prevIoUsly-included files found matching 'multidict\*.pyd'
warning: no prevIoUsly-included files found matching 'multidict\*.pyd'
no prevIoUsly-included directories found matching 'docs\_build'
writing manifest file 'multidict.egg-info\SOURCES.txt'
copying multidict\__init__.pyi -> build\lib.win-amd64-3.9\multidict
copying multidict\_multidict.c -> build\lib.win-amd64-3.9\multidict
copying multidict\py.typed -> build\lib.win-amd64-3.9\multidict
creating build\lib.win-amd64-3.9\multidict\_multilib
copying multidict\_multilib\defs.h -> build\lib.win-amd64-3.9\multidict\_multilib
copying multidict\_multilib\dict.h -> build\lib.win-amd64-3.9\multidict\_multilib
copying multidict\_multilib\istr.h -> build\lib.win-amd64-3.9\multidict\_multilib
copying multidict\_multilib\iter.h -> build\lib.win-amd64-3.9\multidict\_multilib
copying multidict\_multilib\pair_list.h -> build\lib.win-amd64-3.9\multidict\_multilib
copying multidict\_multilib\views.h -> build\lib.win-amd64-3.9\multidict\_multilib
running build_ext
building 'multidict._multidict' extension
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
----------------------------------------
ERROR: Failed building wheel for multidict
Building wheel for yarl (PEP 517) ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\user\appdata\local\programs\python\python39\python.exe' 'c:\users\user\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\User\AppData\Local\Temp\tmp_na_hzow'
cwd: C:\Users\User\AppData\Local\Temp\pip-install-qj3xz8wb\yarl
Complete output (35 lines):
**********************
* Accellerated build *
**********************
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-3.9
creating build\lib.win-amd64-3.9\yarl
copying yarl\_quoting.py -> build\lib.win-amd64-3.9\yarl
copying yarl\_quoting_py.py -> build\lib.win-amd64-3.9\yarl
copying yarl\_url.py -> build\lib.win-amd64-3.9\yarl
copying yarl\__init__.py -> build\lib.win-amd64-3.9\yarl
running egg_info
writing yarl.egg-info\PKG-INFO
writing dependency_links to yarl.egg-info\dependency_links.txt
writing requirements to yarl.egg-info\requires.txt
writing top-level names to yarl.egg-info\top_level.txt
reading manifest file 'yarl.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no prevIoUsly-included files matching '*.pyc' found anywhere in distribution
warning: no prevIoUsly-included files matching '*.cache' found anywhere in distribution
warning: no prevIoUsly-included files found matching 'yarl\*.html'
warning: no prevIoUsly-included files found matching 'yarl\*.so'
warning: no prevIoUsly-included files found matching 'yarl\*.pyd'
no prevIoUsly-included directories found matching 'docs\_build'
writing manifest file 'yarl.egg-info\SOURCES.txt'
copying yarl\__init__.pyi -> build\lib.win-amd64-3.9\yarl
copying yarl\_quoting_c.c -> build\lib.win-amd64-3.9\yarl
copying yarl\_quoting_c.pyi -> build\lib.win-amd64-3.9\yarl
copying yarl\_quoting_c.pyx -> build\lib.win-amd64-3.9\yarl
copying yarl\py.typed -> build\lib.win-amd64-3.9\yarl
running build_ext
building 'yarl._quoting_c' extension
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
----------------------------------------
ERROR: Failed building wheel for yarl
Failed to build multidict yarl
ERROR: Could not build wheels for multidict,yarl which use PEP 517 and cannot be installed directly
很显然，我转到了链接并下载了构建工具，然后检查了C ++部分，但是在重新启动计算机，重新安装Visual Studio之后，我仍然遇到相同的问题。我想知道安装过程中是否缺少我所需要的部分，或者是否弄乱了某些内容。 任何帮助表示赞赏。
解决方法
尝试安装Visual Studio：https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=16和Visual Studio C ++生成工具：https://visualstudio.microsoft.com/visual-cpp-build-tools/。该问题应该得到解决。
,- 打开Visual Studio安装程序并选择修改构建工具
- 转到各个组件并确保C ++ 2019可再发行更新，适用于Windows的C ++ CMake工具，MSVC v142-VS 2019 C ++ x64 / x86构建工具（v14.27），C ++ AddressSanitizer（实验性），C ++构建工具的核心功能，被检查。
如果未选中它们，然后选择“修改”。如果您使用的是基于ARM或ARM64的系统，请使用ARM或ARM64版本替换MSVC v142-VS 2019 C ++ x64 / x86构建工具（v14.27）。
,我认为要安装discord api，您需要编写命令 pip install discord.py 而不是 pip install discord