(.venv) qutebrowser (master*) » qutebrowser --backend webengine                                                                                                                             ~/.local/src/qutebrowser
13:42:26 ERROR: Uncaught exception
Traceback (most recent call last):
  File "/home/robert/.local/src/qutebrowser/.venv/bin/qutebrowser", line 11, in <module>
    load_entry_point('qutebrowser', 'gui_scripts', 'qutebrowser')()
  File "/home/robert/.local/src/qutebrowser/qutebrowser/qutebrowser.py", line 169, in main
    return app.run(args)
  File "/home/robert/.local/src/qutebrowser/qutebrowser/app.py", line 112, in run
    init(args, crash_handler)
  File "/home/robert/.local/src/qutebrowser/qutebrowser/app.py", line 139, in init
    _init_modules(args, crash_handler)
  File "/home/robert/.local/src/qutebrowser/qutebrowser/app.py", line 452, in _init_modules
    browsertab.init()
  File "/home/robert/.local/src/qutebrowser/qutebrowser/browser/browsertab.py", line 60, in init
    from qutebrowser.browser.webengine import webenginetab
  File "/home/robert/.local/src/qutebrowser/qutebrowser/browser/webengine/webenginetab.py", line 38, in <module>
    from qutebrowser.browser.webengine import (webview, webengineelem, tabhistory,
  File "/home/robert/.local/src/qutebrowser/qutebrowser/browser/webengine/webview.py", line 111, in <module>
    class WebEnginePage(QWebEnginePage):
  File "/home/robert/.local/src/qutebrowser/qutebrowser/browser/webengine/webview.py", line 247, in WebEnginePage
    if PYQT_VERSION > 0x050700:
NameError: name 'PYQT_VERSION' is not defined