I just set up a brand new, clean Python 3.8.2 environment, and installed several packages, including ipython, jupyter, jupyterlab and qtconsole. On starting the latter, I get an error: Interestingly, ...

When I start QtConsole via the Start Menu shortcut provided by menuinst, I get a CMD/terminal window in the background (in addition to the QtConsole window). The terminal is titled something like ...