I’ve got 4 groups each with 2 subgroups [image] I want to add, “cat” to index[1][1] How do I do this? I’ve tried various ways but nothing seems to work! [image] [image] I’ve also tried insert.

Then don’t define by it *4. groups = [] [ groups.append([ [],[] ]) for i in range(n) ]

Adding items to nested lists Python

c.poupin November 27, 2022, 9:27am 5

There is problem with your list (at initialization /construction), see this post

1 Like

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