macOS Big Sur 下安装numpy和pandas
Python是我最喜欢的一个脚本语言，主要原因就是各种库非常多，并且相当齐全，安装也是非常简单，最近系统升级到Big Sur之后，发现python也升级到了3.9版本，奈何我之前装的一堆扩展都没了，只好重新装，但是当我装到pandas库的时候，总是出现以下问题：
ERROR: Command errored out with exit status 1:
command: /usr/local/opt/[email protected]/bin/python3.9 /usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/tmpq9pbdhcr
cwd: /private/var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/pip-install-hyqkgsxw/pandas
Complete output (23 lines):
init_dgelsd failed init
Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py", line 280, in <module>
main()
File "/usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py", line 263, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "/usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py", line 114, in get_requires_for_build_wheel
return hook(config_settings)
File "/private/var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/pip-build-env-qz4qwc6o/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 149, in get_requires_for_build_wheel
return self._get_build_requires(
File "/private/var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/pip-build-env-qz4qwc6o/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 130, in _get_build_requires
self.run_setup()
File "/private/var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/pip-build-env-qz4qwc6o/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 253, in run_setup
super(_BuildMetaLegacyBackend,
File "/private/var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/pip-build-env-qz4qwc6o/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 145, in run_setup
exec(compile(code, __file__, 'exec'), locals())
File "setup.py", line 20, in <module>
import numpy
File "/private/var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/pip-build-env-qz4qwc6o/overlay/lib/python3.9/site-packages/numpy/__init__.py", line 286, in <module>
raise RuntimeError(msg)
RuntimeError: Polyfit sanity test emitted a warning, most likely due to using a buggy Accelerate backend. If you compiled yourself, see site.cfg.example for information. Otherwise report this to the vendor that provided NumPy.
RankWarning: Polyfit may be poorly conditioned
----------------------------------------
ERROR: Command errored out with exit status 1: /usr/local/opt/[email protected]/bin/python3.9 /usr/local/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /var/folders/_b/vfbnss6x5_nf44njbbg911k00000gn/T/tmpq9pbdhcr Check the logs for full command output.这一堆乱七八糟的东西我也看不懂，问了Google之后，说是不能装新版本的Numpy，但是卸载降级之后还是不行，再问Google说是python3.9不行，这个卸载降级可以有点麻烦了。继续找解决方法，最后终于在Github上找到了如下的解决方法：
$ python3 -m pip install --upgrade pip setuptools wheel
followed by
$ python3 -m pip install --force-reinstall numpy这个方法简单靠谱，终于治好了我的python
最后更新于 2021-01-12 02:56:34 并被添加「python macos」标签，已有 4662 位童鞋阅读过。
本作品采用知识共享署名-非商业性使用-禁止演绎 4.0 国际许可协议进行许可。