Python Quiz: What is the Output?

@PythonPr 3 option B as [3,4] is a single element added to the original one

@PythonPr B. Since the list [3, 4] is appended as a third element to x, thus x becomes [1, 2, [3, 4]].

@PythonPr B. The list [3,4] is appended to x as a 3rd element, so 3

@PythonPr 4

@PythonPr 3 The new x is [1, 2, [3, 4]].

@PythonPr 4

@PythonPr B. Justification: the list is appended to x’s list, creating a list within a list

@PythonPr 3

@PythonPr 3, I think. Unless I confuse append with extend again. The last element would be a list within a list.

@PythonPr this B

@PythonPr 3

@PythonPr youtube.com/shorts/H7RuFQP…

TL;DR: spent way too long trying to figure out the ED thing without doing the pill route. Wish I'd found Tenuto first.

@PythonPr It's 3 append() always adds one item (the whole nested list), not its contents. Classic append vs extend gotcha

@PythonPr C

@PythonPr len(x) == len([1, 2, 3, 4]) so ➛ C 4

@PythonPr 4

@PythonPr C

@PythonPr C

@PythonPr 3

@PythonPr C

@PythonPr b

@PythonPr B

@PythonPr C

@PythonPr Nested list.

@PythonPr 3