python - ImportError: DLL load failed while importing QtWebEngineWidgets: when running spyder for python

Question

尝试运行 spyder 时出现此问题

C:\ProgramData\Anaconda3\Scripts>spyder
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\qtpy\QtWebEngineWidgets.py", line 22, in <module>
    from PyQt5.QtWebEngineWidgets import QWebEnginePage
ImportError: DLL load failed while importing QtWebEngineWidgets: The specified module could not be found.

在处理上述异常的过程中，又出现了一个异常：

Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\Scripts\spyder-script.py", line 10, in <module>
    sys.exit(main())
  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\app\start.py", line 178, in main
    from spyder.app import mainwindow
  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 90, in <module>
    from qtpy import QtWebEngineWidgets  # analysis:ignore
  File "C:\ProgramData\Anaconda3\lib\site-packages\qtpy\QtWebEngineWidgets.py", line 26, in <module>
    from PyQt5.QtWebKitWidgets import QWebPage as QWebEnginePage
ModuleNotFoundError: No module named 'PyQt5.QtWebKitWidgets'

我试过 https://www.programmersought.com/article/80564836035/ pip 安装 PyQtWebEngine 和卸载 PyQt5-stubs

标签： pythonpyqtanacondaspyder

Answer 1

我不使用 Spyder，但我遇到了这个问题并设法以某种方式解决了它。

我是这样安装PyQtWebEngine的：pip install PyQtWebEngine. 但是，这并没有导致Python39\Lib\site-packages\PyQt5\Qt5\bin\Qt5WebEngine.dll创建正确的文件。

解决方案：

• pip uninstall PyQtWebEngine
• pip uninstall PyQtWebEngine-qt5
• pip install PyQtWebEngine-qt5
• pip install PyQtWebEngine

虽然安装 Qt5 工具的先决条件最终确实安装了，但不知何故搞砸了。首先手动安装它，确保所有东西都放在它应该在的地方。