Hard Coded Options

What would I modify if I wanted the script to always write to the same file? When I run `python getwarranty.py` I want it to actually be running `python getwarranty.py -o /folder/file.txt`, without the need to add `-o /folder/file.txt`

I am not familiar with python and have tried hard coding values in a few places, but couldn't quite figure it out. 