Your snippet is missing some key contextual info from the surrounding code: where was edg created and what does it refer to? Lacking that, it is impossible to guess what face=edg.faces[0] returns, hence what pushpull is acting on.

Okay, I found a solution, I should have had the if statement in the plugin I wanted to run.

I found it, it was a test .rb file, not a plugin but it did have
def get_from_excel

That is where the plugin was getting the code from.

Thank you,
The style does change now that I am in the correct code.