python - Could you explain evaluation of 5--4 in Jupyterlab?

Question

I'm new to Python and Jupyter-lab. In Jupyter-lab, when I try to run expression:

5--4

It gives output as 9. Could you explain why?

question from:https://stackoverflow.com/questions/65929268/could-you-explain-evaluation-of-5-4-in-jupyterlab

Answer 1

Python parses the expression as (5)-(-4) and hence a 9 is returned.