Special variable name "__" not treated as local about marimo

[dmadisetti]

marimo secretly renames all variables that start with _ to _<cell name>_<variable name> somehow these variables are falling through the filter

This is likely a problem during static analysis in _ast/visitor

[ontowhee]

I'm new to marimo and learning the internals of python! I would love to help and work on this issue.

You mention this is not really a bug. What is the desired behavior for referencing __ across cells? Or are you suggesting that there be documentation for this? Or should this raise an error, and what error would that be?

Thanks for the code example. I was able to create a notebook, https://marimo.app/?slug=l6y37x, to illustrate that a private variable raises the NameError when referenced in another cell. If it is desirable to "hide" __ across cells, would it also raise a NameError? How does that affect the fact that __ is a global variable?