Computer Science · Python Lists

What is the primary operational difference between the append() and extend() methods when the passed argument is another list?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1append() works only with integer sequences; extend() works with all data types.
2append() returns a new modified list; extend() modifies the original list in-place.
3append() adds elements to the beginning; extend() adds elements to the end of the list.
4append() adds the argument list as a single nested element; extend() flattens and adds individual elements.✓

Correct answer

append() adds the argument list as a single nested element; extend() flattens and adds individual elements.

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