Based on my limited knowledge about Python, “formula” is of the type tuple within this example. Then why is it being referred to as a list in the comments? Or is there something else?
PS: The comment after return statement is added by me and that after declaring “formula” variable is from the book LPTHW.
Yes that’s not a hundred percent precise. But don’t bother. This works for any iterable, that is, any object that has the form of a sequence where you can read things one by one.
Are iterable objects separated by commas, like list and tuples?
Basically yes. Also strings, dictionaries, generators… If you’re interested, google “Python iterator protocol”.