Document usage of !

[PythonCoderAS]

The Problem

I ran into a weird case by putting an exclamation mark in my command:

!jsk py os!.walk

This seems to import os and then returns the walk function.

The Ideal Solution

This behavior should be documented.

The Current Solution

There is no documentation

Summary

Documentation of hidden feature

[syricium]

If you look into the source code, you can see that it uses the import-expression module, and it's behavior is documented at the module's PyPI page

[PythonCoderAS]

I think a small note that "jsk py uses import expressions" on the command's doc page wouldn't hurt.