【已解决】“Matplotlib is currently using agg, which is a non

2023-06-17 17:11| 来源: 网络整理| 查看: 265

python程序无法运行出图形化界面

完整报错信息： “UserWarning: Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figure.”

以下是引用的模块，检查是否安装好已引用的模块：

import numpy as np import matplotlib.pyplot as plt from scipy.interpolate import interp1d

模块安装没有问题，使用查看图像的方法是plt.show() 根据报的错，agg存在问题，那我们就安装使用另外一个图形化PyQt5开发库

PS D:\MyPythonCode\Algorithm\EX07> pip install PyQt5 Defaulting to user installation because normal site-packages is not writeable Collecting PyQt5 Downloading PyQt5-5.15.9-cp37-abi3-win_amd64.whl (6.8 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 6.8/6.8 MB 4.6 MB/s eta 0:00:00 Collecting PyQt5-sip=12.11 (from PyQt5) Downloading PyQt5_sip-12.12.1-cp311-cp311-win_amd64.whl (78 kB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 78.4/78.4 kB 4.5 MB/s eta 0:00:00 Collecting PyQt5-Qt5>=5.15.2 (from PyQt5) Downloading PyQt5_Qt5-5.15.2-py3-none-win_amd64.whl (50.1 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 50.1/50.1 MB 6.2 MB/s eta 0:00:00 Installing collected packages: PyQt5-Qt5, PyQt5-sip, PyQt5 WARNING: The scripts pylupdate5.exe, pyrcc5.exe and pyuic5.exe are installed in 'C:\Users\ch Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location. Successfully installed PyQt5-5.15.9 PyQt5-Qt5-5.15.2 PyQt5-sip-12.12.1

安装成功后，重新运行程序，图形化界面成功显示：在这里插入图片描述 PS：如果没有，请在前面导入以下包

import matplotlib matplotlib.use('Qt5Agg')

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