/usr/bin/python3.5:11:WTFCrash:WebKit::CallbackMap::put:WebKit::CallbackMap::put:WebKit::WebPageProxy::runJavaScriptInMainFrame:webkit_web_view_run_javascript

The Ubuntu Error Tracker has been receiving reports about a problem regarding python3.5. This problem was most recently seen with package version 3.5.3-1ubuntu0~17.04.2, the problem page at https://errors.ubuntu.com/problem/4ddc0c785ce7ba1b955f8fa07f96caa0f2accf45 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.