python - 使用PySimpleGUI，MatPlotLib和tkinter的图形代码在选择函数时崩溃

你好可爱聪明的人。我遇到了一段漂亮的代码，理论上可以帮助我完成一个正在进行的项目。但是，每次我运行它并从列表中选择一个选项时，它都会崩溃。原始代码超过900行，可以在这里找到：
https://github.com/PySimpleGUI/PySimpleGUI/blob/e59b0060b6837cfb9ec3809da51e4fe04358b6ee/DemoPrograms/Demo_Matplotlib_Browser_Paned.py
我已经把它简化成一堆骨头，看能不能把它弄好，但运气不好。
目标是让一个功能正常的图形选项列表出现在包含相应图形的画布旁边，并能够根据用户的选择更新图形。
提前谢谢你！
我正在使用：
Pycharm 2.5社区版
MatPlotLib版本3.1.1
PySimpleGui版本4.1
Numpy版本1.17
关于Mac Os Mojave 10.14.6
我已经尽我所能更新了一切。我也试过在Windows机器上运行它，结果得到了同样的错误消息。

import matplotlib
matplotlib.use('TkAgg')
from matplotlib.backends.backend_tkagg import FigureCanvasAgg
import matplotlib.backends.tkagg as tkagg
import inspect
import numpy as np
import matplotlib.pyplot as plt
import tkinter as Tk


def PyplotHistogram():
    np.random.seed(0)

    n_bins = 10
    x = np.random.randn(1000, 3)

    fig, axes = plt.subplots(nrows=2, ncols=2)
    ax0, ax1, ax2, ax3 = axes.flatten()

    colors = ['red', 'tan', 'lime']
    ax0.hist(x, n_bins, density=1, histtype='bar', color=colors, label=colors)
    ax0.legend(prop={'size': 10})
    ax0.set_title('bars with legend')

    ax1.hist(x, n_bins, density=1, histtype='bar', stacked=True)
    ax1.set_title('stacked bar')

    ax2.hist(x, n_bins, histtype='step', stacked=True, fill=False)
    ax2.set_title('stack step (unfilled)')

    # Make a multiple-histogram of data-sets with different length.
    x_multi = [np.random.randn(n) for n in [10000, 5000, 2000]]
    ax3.hist(x_multi, n_bins, histtype='bar')
    ax3.set_title('different sample sizes')

    fig.tight_layout()
    return fig


def draw_figure(canvas, figure, loc=(0, 0)):
    """ Draw a matplotlib figure onto a Tk canvas
    loc: location of top-left corner of figure on canvas in pixels.
    Inspired by matplotlib source: lib/matplotlib/backends/backend_tkagg.py
    """
    figure_canvas_agg = FigureCanvasAgg(figure)
    figure_canvas_agg.draw()
    figure_x, figure_y, figure_w, figure_h = figure.bbox.bounds
    figure_w, figure_h = int(figure_w), int(figure_h)
    photo = Tk.PhotoImage(master=canvas, width=figure_w, height=figure_h)

    # Position: convert from top-left anchor to center anchor
    canvas.create_image(loc[0] + figure_w/2, loc[1] + figure_h/2, image=photo)

    # Unfortunately, there's no accessor for the pointer to the native renderer
    tkagg.blit(photo, figure_canvas_agg.get_renderer()._renderer, colormode=2)

    # Return a handle which contains a reference to the photo object
    # which must be kept live or else the picture disappears
    return photo


fig_dict = {'Pyplot Histogram' : PyplotHistogram}


sg.ChangeLookAndFeel('LightGreen')
figure_w, figure_h = 650, 650
# define the form layout
listbox_values = [key for key in fig_dict.keys()]
col_listbox = [[sg.Listbox(values=listbox_values, change_submits=True, size=(28, len(listbox_values)), key='func')],
               [sg.T(' ' * 12), sg.Exit(size=(5, 2))]]

col_multiline = sg.Column([[sg.Multiline(size=(70, 35), key='multiline')]])
col_canvas = sg.Column([[ sg.Canvas(size=(figure_w, figure_h), key='canvas')]])

layout = [[sg.Text('Matplotlib Plot Test', font=('current 18'))],
          [sg.Column(col_listbox), sg.Pane([col_canvas, col_multiline], size=(800,600))],
          ]

# create the form and show it without the plot
window = sg.Window('Demo Application - Embedding Matplotlib In PySimpleGUI',resizable=True, grab_anywhere=False).Layout(layout)
window.Finalize()

canvas_elem = window.FindElement('canvas')
multiline_elem= window.FindElement('multiline')

while True:
    event, values = window.Read()
    # print(event)
    # show it all again and get buttons
    if event in (None, 'Exit'):
        break

    try:
        choice = values['func'][0]
        func = fig_dict[choice]
    except:
        pass

    multiline_elem.Update(inspect.getsource(func))
    plt.clf()
    fig = func()
    fig_photo = draw_figure(canvas_elem.TKCanvas, fig)


*** ERROR MESSAGE ***

/Users/thewarpdrive/PycharmProjects/sports/venv/bin/python "/Users/thewarpdrive/PycharmProjects/sports/breakdown graph options.py"
/Users/thewarpdrive/PycharmProjects/sports/breakdown graph options.py:5: MatplotlibDeprecationWarning:
The matplotlib.backends.tkagg module was deprecated in Matplotlib 3.0 and will be removed in 3.2.
  import matplotlib.backends.tkagg as tkagg
*** Changing look and feel is not supported on Mac platform ***
Traceback (most recent call last):
  File "/Users/thewarpdrive/PycharmProjects/sports/venv/lib/python3.7/site-packages/matplotlib/backends/tkagg.py", line 27, in blit
    dataptr, colormode, bboxptr)
_tkinter.TclError: invalid command name "PyAggImagePhoto"

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/thewarpdrive/PycharmProjects/sports/breakdown graph options.py", line 103, in <module>
    fig_photo = draw_figure(canvas_elem.TKCanvas, fig)
  File "/Users/thewarpdrive/PycharmProjects/sports/breakdown graph options.py", line 56, in draw_figure
    tkagg.blit(photo, figure_canvas_agg.get_renderer()._renderer, colormode=2)
  File "/Users/thewarpdrive/PycharmProjects/sports/venv/lib/python3.7/site-packages/matplotlib/backends/tkagg.py", line 28, in blit
    except tk.TclError:
AttributeError: '_tkinter.tkapp' object has no attribute 'TclError'

Process finished with exit code 1

最佳答案

在PySimpleGUI GitHub上打开了一个关于在PySimpleGUI中使用Matplotlib 3.1.1的问题。
报告并讨论了这些问题。
https://github.com/PySimpleGUI/PySimpleGUI/issues/1620
https://github.com/PySimpleGUI/PySimpleGUI/issues/1713
请尝试安装Matplotlib 3.0.3。
您可能会发现，通过搜索项目的GitHub可以更快地得到答案。