Mac 中 python 的 pyplot 调用 show() 时报错，怎么解决？

Question

Python 文件代码如下：

import matplotlib.pyplot as plt

fig = plt.figure()
plt.show()

执行后，能运行显示窗口：

但问题在于，一旦触控鼠标（MagicMouse）在 Figure 窗口（触控）滚动操作时，就会报错：

Traceback (most recent call last):
  File "/Users/***/PycharmProjects/LNN/venv/pltTest.py", line 4, in <module>
    plt.show()
  File "/Users/***/PycharmProjects/LNN/venv/lib/python3.6/site-packages/matplotlib/pyplot.py", line 253, in show
    return _show(*args, **kw)
  File "/Users/***/PycharmProjects/LNN/venv/lib/python3.6/site-packages/matplotlib/backend_bases.py", line 208, in show
    cls.mainloop()
  File "/Users/***/PycharmProjects/LNN/venv/lib/python3.6/site-packages/matplotlib/backends/_backend_tk.py", line 1073, in mainloop
    Tk.mainloop()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/tkinter/__init__.py", line 557, in mainloop
    _default_root.tk.mainloop(n)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

难道 pyplot 不支持触控鼠标的手势操作？虽然操作可避免，这个报错无伤大雅，但还是想知道原因和解决办法啊，希望有大神能解答?

Answer 1

参照【https://github.com/dmsenter89...】里边的回答，原因和解决方法是【It looks like this is a known problem for instances of Python installed with Homebrew. Using an installation directly from python.org or Anaconda should resolve the issue.】
但从新安装比较麻烦，所以没有尝试可不可以，使用了另外的代码解决方案，参照的是【https://github.com/matplotlib...】

while True:
    try:
        plt.show()
    except UnicodeDecodeError:
        continue
    break

这样是可以解决问题，希望能帮到