Python AttributeError:'；图（）和#x27；不是Qt属性或信号

下面是我正在尝试运行的简单代码：

from matplotlib import pyplot as plt

movies=["Annie", "Ben","Casa", "Gandhi", "West"]
num_oscars=[5,11,3,8,10]

xs=[i+0.1 for i, _ in enumerate(movies)]

plt.bar(xs,num_oscars)

我得到了以下错误（在pycharm中运行，安装了Anaconda，python 2.7）：

这没有帮助

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请告知

我在运行树冠环境时也遇到同样的问题。我在编辑器中看到了问题，但在iPython中绘制正确。原来PyLab后端配置错误，正在尝试PyQT4。我把它改为交互式（wx），现在可以正常工作了

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你有没有找到这个问题的答案？

Traceback (most recent call last):
  File "C:/Users/AlexPower/Desktop/python/myCode/ch2_new_1", line 15, in <module>
    plt.bar(xs,num_oscars)
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\pyplot.py", line 2692, in bar
    ax = gca()
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\pyplot.py", line 950, in gca
    return gcf().gca(**kwargs)
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\pyplot.py", line 586, in gcf
    return figure()
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\pyplot.py", line 535, in figure
    **kwargs)
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\backends\backend_qt5agg.py", line 44, in new_figure_manager
    return new_figure_manager_given_figure(num, thisFig)
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\backends\backend_qt5agg.py", line 51, in new_figure_manager_given_figure
    canvas = FigureCanvasQTAgg(figure)
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\backends\backend_qt5agg.py", line 242, in __init__
    super(FigureCanvasQTAgg, self).__init__(figure=figure)
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\backends\backend_qt5agg.py", line 66, in __init__
    super(FigureCanvasQTAggBase, self).__init__(figure=figure)
  File "C:\Users\AlexPower\Anaconda2\lib\site-packages\matplotlib\backends\backend_qt5.py", line 243, in __init__
    super(FigureCanvasQT, self).__init__(figure=figure) 


AttributeError: 'figure()' is not a Qt property or a signal

import os

    if 'QT_API' not in os.environ and 'ETS_TOOLKIT' not in os.environ: 
        os.environ['QT_API'] = 'pyqt'
        os.environ['ETS_TOOLKIT'] = 'qt4