Python 3.7.0 没有名为“PyQt5.QtWebEngineWidgets”的模块

Question

I have Python 3.7.0 and I installed PyQt5 with this command:

pip install PyQt5

I have returned this error:

    main.py", line 4, in <module>
    from PyQt5.QtWebEngineWidgets import *
ModuleNotFoundError: No module named 'PyQt5.QtWebEngineWidgets'

In Eclipse I have this configuration:

What may be wrong?

Thanks

Answer 1

It has been moved to a separated package.

Based on this answer and my own experience, Just execute in a terminal:

pip install PyQtWebEngine

If you still got problems with PyQt, try uninstalling all of the PyQt related libraries:

pip uninstall PyQt5
pip uninstall PyQt5-sip
pip uninstall PyQtWebEngine

Then install them again, which should fix the following errors:

ModuleNotFoundError: No module named 'PyQt5.sip'
ModuleNotFoundError: No module named 'PyQt5.QtWebEngineWidgets'

If you got problems uninstalling the libraries, go to your Python folder, like:

C:\Users\<USERNAME>\AppData\Local\Programs\Python\Python<PYTHON-VERSION>\Lib\site-packages

and manually delete the PyQt folders, then uninstall everything and install again.

Make sure you have the latest Python version and upgraded your pip too

Answer 2

对我来说，首先使用pip uninstall PyQtWebEngine然后使用pip install PyQtWebEngine重新安装解决了 Spyder 无法启动的问题。

Answer 3

我刚刚安装了旧版本的 pyqt5

pip install PyQt5==5.7.1

Answer 4

this is a problem with pyqt5. You can try:

pip install pyqt5==pyqt5.8

or same for conda