如何解决“准备车轮元数据...错误"?适用于python 3.9的MacOS的此错误 [英] How to solve "Preparing wheel metadata ... error" this error for MacOS for python 3.9

问题描述

我正在尝试将pip3与python 3.9一起使用来安装模块...我阅读了有关Windows的答复，这些答复建议安装Visual Studio，因为我们需要一个好的C ++编译器

I am trying to use pip3 with python 3.9 to install modules... I read replies for windows which suggest installing VisualStudio as we need a good C++ compiler

我使用macOS

我正在添加输入和错误消息以更好地理解

I am adding the input and error message for better understanding

输入:

rohansaswade@Rohans-MBP ~ % pip3 install numpy

输出:

 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:

我没有提到完整的错误输出，因为它似乎无关紧要，但是如果您需要它来帮助我，请发表评论.

I did not mention the complete error output as it seems pretty irrelevant, yet if you need it to help me, please drop a comment.

我使用macOS Catalina 10.15.7和python 3.9

I use macOS Catalina 10.15.7 and python 3.9

推荐答案

我遇到了同样的问题.以我为例，以下步骤虽然很费时，但很有帮助.

I had the same issue. In my case, the steps below helped though it was time-consuming.

#准备工作
pip install cython
git clone https://github.com/numpy/numpy.git

#Preparation
pip install cython
git clone https://github.com/numpy/numpy.git

#Steps
cd numpy
python setup.py构建
python setup.py install

#Steps
cd numpy
python setup.py build
python setup.py install

我希望它也对您有用.

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