Way to call python script instead of writing it in the query.

[YizeD]

Is there a way to call a python script instead of having to type the script into the query? I want to avoid having to copy and paste the python code every time a change is made. I can't really find any documents on this since most of the tutorials involve just running python scripts written in the query. Someone showed me some examples of it being done in R, but the lines of code doesn't really explain how the filepaths were written or where the scripts were stored.