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你好可爱的聪明人。我遇到了这段漂亮的代码，理论上它应该可以帮助我完成我正在从事的项目。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

我已将其简化为裸露的骨头，以查看是否可以使其正常工作，但没有运气。

目标是让一个正常工作的图形选项列表出现在包含相应图形的画布旁边，并能够根据用户所做的选择更新图形。

先感谢您！

我正在使用： Pycharm 2.5 社区版 MatPlotLib 3.1.1 版 PySimpleGui 4.1 版 Numpy 1.17 版

在 Mac Os Mojave 10.14.6 上

我已经更新了我能做的一切。我也尝试在 Windows 机器上运行它，导致相同的错误消息。

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
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1 回答 1

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PySimpleGUI GitHub 上打开了一个关于使用 Matplotlib 3.1.1 和 PySimpleGUI 的问题。报告和讨论了这些问题。

https://github.com/PySimpleGUI/PySimpleGUI/issues/1620 https://github.com/PySimpleGUI/PySimpleGUI/issues/1713

尝试安装 Matplotlib 3.0.3。

您可能会发现通过搜索项目的 GitHub 可以获得更快的答案。

于 2019-08-07T15:30:41.823 回答