Small change to worker_base.py

[ABrain7710]

1. Made a small change to an if else block which makes it more readable

The old version had two chains of if else blocks using python's syntax, which I found very difficult to read, so I changed it to 1 more traditional if else block

Essentially I took 2 if else chains using python syntax to 1 more traditional if else block

[IsaacMilarky]

This seems better and more readable for sure. I don't know why there was some unnecessary redundancy before.