Matplotlib的绘图窗口是白色的空白，没有显示任何图像

我能够解决macOS Majave 10.14.6的问题，而不需要通过Anaconda/Conda重新安装，方法是添加这段代码（如在文章中解释的那样https://stackoverflow.com/a/56025793/1657354):

import matplotlib
import platform
if platform.system() == 'Darwin':
    matplotlib.use('MacOSX')
else:
    matplotlib.use('TkAgg')

我相信platform.system() == 'Darwin'允许这段代码在其他平台下工作。

根据我的经验，要在Mac OS上运行，我发现使用完整版的Anaconda和使用VS Code作为编辑器/IDE要容易得多。

卸载Miniconda。

• Open a terminal window and remove the entire miniconda install directory:

rm -rf ~/miniconda.

• You can also edit ```~/.bash_profile`` and remove the miniconda directory from your PATH environment variable
• Remove the hidden .condarc file and .conda and .continuum directories which are usually created in your directory:

rm -rf ~/.condarc ~/.conda ~/.continuum

安装Anaconda和VS Code。

• Go to the 安装网站并下载Mac OS的安装程序（我建议选择最新的Python版本（3.7））。

• 遵循安装说明

• Once installed open the Anaconda Navigator and select the option to install VS code:

VS代码安装/启动

运行一个测试脚本

• Open VS Code via the Anaconda Installer
• Create a new script: File > New File
• Save it as "test.py"
• Enter the following code:

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(-4*np.pi,4*np.pi)
y = np.sin(x)
plt.plot(x,y,'.-')
plt.show()

• Save the file
• Select the Anaconda Python interpreter:
• Open the command pallet (Ctrl+Shift+P)
• Enter "Python: Select Interpreter"
• Choose the one that says "anaconda" in the name...
• Open the command dialog box again (Ctrl+Shift+P)
• Enter "Python: Create Terminal" and in terminal run:

python test.py

希望这一切能起作用，你会看到以下情况。

辛函数图