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Bug
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Resolution: Out of scope
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Not Evaluated
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None
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6.4.2
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None
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python 3.9, matploblib 3.7.1
When used in combination with matploblib and pyside, the following import order will report an error
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas from PySide6.QtWidgets import (QApplication, QComboBox, QHBoxLayout, QHeaderView, QLabel, QMainWindow, QSlider, QTableWidget, QTableWidgetItem, QVBoxLayout, QWidget)
Error content:
anaconda3/envs/py39/lib/python3.9/site-packages/matplotlib/backends/qt_compat.py", line 135, in <module>
raise ImportError(
ImportError: Failed to import any of the following Qt binding modules: PyQt6, PySide6, PyQt5, PySide2
But as long as the upper and lower import order is reversed, the program will run correctly, that is, the following import order
from PySide6.QtWidgets import (QApplication, QComboBox, QHBoxLayout, QHeaderView, QLabel, QMainWindow, QSlider, QTableWidget, QTableWidgetItem, QVBoxLayout, QWidget) from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
Theoretically, the order of imports should not affect whether the program can be executed correctly, and I haven't seen any document that needs to modify the order of imports, and I don't know why. The attached program verifies the problem I describe.