pip._vendor.packaging.version.InvalidVersion: Invalid version: ‘-PKG-VERSION‘

ImportError: No compliant GUI library could be imported.Either PyQt5, PyQt4, PySide2, PySide, or wx

Python 脚本正在尝试使用图形用户界面(GUI)库,但找不到已安装的任何 GUI 库

pip install PyQt5

报错

pip._vendor.packaging.version.InvalidVersion: Invalid version: ‘-PKG-VERSION‘_第1张图片pip._vendor.packaging.version.InvalidVersion: Invalid version: '-PKG-VERSION' 

要用conda命令安装

conda install pyqt5==5.12.3

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