Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

DeprecationWarning: ShellWidget._syntax_style_changed is deprecated in traitlets 4.1: use @observe and @unobserve instead

See original GitHub issue

I received the following warning when running the test suite:

spyder/plugins/ipythonconsole/tests/test_ipythonconsole.py::test_banners
  <<<PACKAGEDIR>>>/spyder/plugins/ipythonconsole/widgets/shell.py:789: DeprecationWarning: ShellWidget._syntax_style_changed is deprecated in traitlets 4.1: use @observe and @unobserve instead.
    def _syntax_style_changed(self):

Issue Analytics

State:
Created 3 years ago
Comments:7 (7 by maintainers)

Top GitHub Comments

2reactions

juliangilbeycommented, Dec 22, 2021

Yes, that fixed it - well done! I’ll make a PR for this.

1reaction

dalthvizcommented, Dec 22, 2021

Maybe the reimplementation over the Spyder side of _syntax_style_changed (originally defined at QtConsole: https://github.com/jupyter/qtconsole/blob/fa1a7f898e7d402ac9bb64a652db5dc509e1f649/qtconsole/jupyter_widget.py#L594-L595) also needs to be decorated with @observe('syntax_style') (and checking seems like over the Spyder side the kwarg is missing). Could you check if that helps @juliangilbey ? Thanks!