This needs a closer investigation, including python versions and backends. We can only broaden the usage of figure.show() if we are absolutely sure that it works in all scenarios.

Specify that after version 3.x (??) of the interpreter the event loop is managed also by a vanilla Python REPL.

It is not the version of Python, but the GUI bindings. The ones I know off the top of my head are Qt: PyQt5 / PyQt6 register PyOs_InputHook ( https://docs.python.org/3/c-api/veryhigh.html#c.PyOS_InputHook) but pyside2/pyside6 does not. However, In the PyQt case there as also API to remove the input hook. I think tk also sets up the inputhook on import, not sure about gtk/wx/macsox off the top of my head. See https://matplotlib.org/stable/users/explain/interactive_guide.html#input-hook-integration for more details.

I suspect the re-wording should be something like "this will put the window on the screen, but you are on your own to ensure an event loop is running for the Figure to be responsive (or ever render). Use at your own risk
https://matplotlib.org/stable/users/explain/interactive_guide.html" ?

@boffi , Hi I have some doubt, can I get your mail id

@MdUmar-tech I'm not sure why asking a random user for their email would be helpful. If you have Matplotlib usage questions, please post them on https://discourse.matplotlib.org.