UserWarning: Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figur

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>>> plt.show()

__main__:1: UserWarning: Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figure.

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原因：

发现发生在 coco.py 文件

技术图片

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处理办法：

import matplotlib

>>> matplotlib.get_backend()

‘agg‘

>>> matplotlib.use(‘TkAgg‘)

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