If nothing else, it's good for a variable list. Usually, any error is one or two cents. In addition, you can edit the main cdnpayroll.py file and hardcode some in to simplify things. You are encouraged to 'adopt' a provincial module for maint. The first thing I wrote with python used wxwindows and seemingly every module under the sun, but I've intentionally tried to keep cdnpayroll minimal that way.
Many arguments have both a long and a short form.
The above shown are a minimal subset, but quite often sufficient. The order doesn't matter. This is to handle the CPP requirement. Optional Y factor for Ont. and Manitoba. Enter the amount deducted or withheld.