pyqt与opencv-python冲突解决（Could not load the Qt platform plugin “xcb“ ）
Could not load the Qt platform plugin "xcb"
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问题描述
QObject::moveToThread: Current thread (0x2ba89440) is not the object's thread (0x2c3d7f30).
Cannot move to target thread (0x2ba89440)
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/i/anaconda3/envs/img/lib/python3.8/site-packages/cv2/qt/plugins" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: xcb, eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl.
已中止 (核心已转储)python低版本（<=3.8）解决方式
pip install opencv-python==4.1.2.304.2版本以下的opencv-python没有cv2/qt/plugins，所以不存在冲突
python高版本解决方式
在代码中加入
import os
os.environ.update({"QT_QPA_PLATFORM_PLUGIN_PATH": "/xxx/.local/lib/python3.11/site-packages/cv2/qt/plugins/platforms"})让python代码找到cv2/qt/plugins就行
摆烂方式
pip install opencv-python-headless不涉及opencv的显示功能就不需要这么多功能，也不会冲突
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