Access Python functions in calculator mode

[etimau]

Hi,

It would be nice to have a special type of function in Python that allows to access this function in calculator mode.
Or a special keyword that allows to execute a Python function from calculator mode.
For example, I made a Python function like myFunction(parameter) that returns a number and I would like to use it directly in calculator mode without having to switch to Python mode, paste the result and go back to calculator mode to use this result.
Maybe it's already possible, but I haven't found how.
If not, do you think it would be something you can do?

Thank you.