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KwickClips Python · 45 sec · free

Why did append give a nested list?

Short answer. append adds the whole list as one item.

How do you add many items separately?

Use extend().

Remember

list(): builds a list
append: one item at the end
extend: many items
insert: at an index

Append two items, get a nested list. Why? List of range of two builds zero and one. Append adds five, six as one item. Extend adds items separately. List builds a list. Append adds one. Extend adds many. Insert adds at an index.

This clip is from the full lesson: List Methods and Built-in Functions — 7 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science Essentials (083)

More KwickClips from this lesson

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