If- elif - else and unreachable code (keep your Python away from this trap!)
When running multiple tests over conditions that are not mutually exclusive (example water is hot - water is very hot), it's important that you do them in the right order; otherwise, some of your code may become unreachable, in the sense that no possible execution path will ever lead to those instructions. Generally, this is a sign of logical flaw in your code. For more information, see the notebooks below (notebooks will open on Google Colab - no installation required)
Embedded video, part of the following courses:
Computer Programming at Queen Mary, University of London
FREE Jupyter notebook: https://tinyurl.com/4umjbjvp
Coding for Scientists at Queen Mary, University of London
FREE Jupyter notebook: https://tinyurl.com/539p4b5f
