Running Python from Atom

In Sublime, we have an easy and convent way to run Python or almost any language for that matter using + b (or ctrl + b)

Where the code will run in a small window below the source code and can easily be closed with the escape key when no longer needed.

Is there a way to replicate this functionally with Github's atom editor?

The script package does exactly what you're looking for:

The package's documentation also contains the key mappings, which you can easily customize.