Feature request: import Python modules from files in Monty's filesystem (code reuse)

[chkp-itamarst]

Context

We'd like sandboxed code to be able to import from .py files in Monty's filesystem — pull functions/helpers out of a module placed there — so code can be shared and reused across executions instead of copy-pasted into every snippet.
This isn't third-party/package import (a known non-goal); it's loading code that already lives in Monty's filesystem.
(Today from lib import helper raisesModuleNotFoundError — import resolves only the built-in stdlib. )

Request

Let import (or a dedicated load call) resolve modules from files in Monty's filesystem. The loaded source runs in the same sandbox, so it grants no capability beyond "run more sandboxed Python."

Prior art

Starlark offers similar behavior via its native load("lib.star", "helper").

[samuelcolvin]

yup, reasonable request. I'll try to get to it.