mac安装matplotlib出现Command errored out

python版本

我的mac自带python2.7和python3.8，默认为python2.7，这里使用python3和pip3安装使用matplotlib

▶ python -V
Python 2.7.16
▶ python3 -V
Python 3.8.2

先升级pip3

python3 -m pip install --upgrade pip

安装matplotlib

python3 -m pip install -U matplotlib

出现以下问题

Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

需要更新升级setuptools

pip3 install --upgrade setuptools

升级后重新使用命令安装matplotlib

测试matplotlib

代码来自https://www.matplotlib.org.cn/
直接在终端中打开python3交互测试

python3 -i
>>> import matplotlib.pylot as plt
>>> x = [1, 2, 3, 4, 5]
>>> y = [2.3, 3.4, 1.2, 6.6, 7.0]
>>> plt.scatter(x, y, color='r', marker='+')
<matplotlib.collections.PathCollection object at 0x11a53dfa0>
>>> plt.show()

成功会显示一幅散点图