Spyder doesn't work with QtWebEngine

[TPeterW]

Description of your problem

I tried to launch spyder 3.0.0 beta2 from command line with qt5 installed from homebrew, sip and pyqt5 install from source code and spyder preview installed from pip, when I launched it, the error log said

Traceback (most recent call last):
File "/usr/local/lib/python3.5/site-packages/spyderlib/spyder.py", line 3119, in main
mainwindow = run_spyder(app, options, args)
File "/usr/local/lib/python3.5/site-packages/spyderlib/spyder.py", line 3005, in run_spyder
main.setup()
File "/usr/local/lib/python3.5/site-packages/spyderlib/spyder.py", line 822, in setup
message=_("Spyder Internal Console\n\n"
File "/usr/local/lib/python3.5/site-packages/spyderlib/plugins/console.py", line 79, in init
self.find_widget.set_editor(self.shell)
File "/usr/local/lib/python3.5/site-packages/spyderlib/widgets/findreplace.py", line 250, in set_editor
from spyderlib.qt.QtWebKit import QWebView
File "/usr/local/lib/python3.5/site-packages/spyderlib/qt/QtWebKit.py", line 10, in
from PyQt5.QtWebKitWidgets import QWebPage, QWebView # analysis:ignore
ImportError: dlopen(/usr/local/lib/python3.5/site-packages/PyQt5/QtWebKitWidgets.so, 2): Library not loaded: /usr/local/opt/qt5/lib/QtWebKitWidgets.framework/Versions/5/QtWebKitWidgets
Referenced from: /usr/local/lib/python3.5/site-packages/PyQt5/QtWebKitWidgets.so
Reason: image not found

• Spyder Version: 3.0.0 beta2
• Python Version: 3.5.1
• Operating system: OS X 10.11 El Cap

[ccordoba12]

This is probably caused because the latest Qt5 version (5.6) deprecated the QtWebKit module in favor of QtWebEngine.

This problem will be fixed in beta3.

[TPeterW]

Yeah, it worked again when I downgraded qt5 back to 5.5.1-2

[raysalemi]

I'm seeing this issue today.

I ran the following commands

 %  conda update qt pyqt
 %  conda install -c spyder-ide spyder=3.0.0b3
 %  spyder

Get this result:

  Traceback (most recent call last):
  File "/Users/raysalemi/anaconda/bin/spyder", line 3, in <module>
   start.main()
 File "/Users/raysalemi/anaconda/lib/python2.7/site-packages/spyderlib/app/start.py", line 118, in main
from spyderlib.app import spyder
 File "/Users/raysalemi/anaconda/lib/python2.7/site-packages/spyderlib/app/spyder.py", line 91, in    <module>
   from qtpy import QtWebEngineWidgets
 File "/Users/raysalemi/anaconda/lib/python2.7/site-packages/qtpy/QtWebEngineWidgets.py", line 32, in <module>
   from PyQt5.QtWebKitWidgets import QWebPage as QWebEnginePage
 ImportError: dlopen(/Users/raysalemi/anaconda/lib/python2.7/site-packages/PyQt5/QtWebKitWidgets.so, 2): Library not loaded: @rpath/./libQt5WebKitWidgets.5.dylib
 Referenced from: /Users/raysalemi/anaconda/lib/python2.7/site-packages/PyQt5/QtWebKitWidgets.so
 Reason: image not found

It looks like this bug may still exist.

[ccordoba12]

This is caused by another problem. We're discussing about it in #3267.

[raysalemi]

Thanks for the pointer. I'm over there now.