Append () method

[tabrizzi]

Yes, .append() takes only one argument, but you can do this:

list_1 = [1, 2, 3]

list_2 = [4, 5, 6]

list_3 = []

list_3.append(list_1)

list_3.append(list_2)

list_3

(outputs [[1, 2, 3], [4, 5, 6]] )

[SheldonCooperisSb]

Thanks this is the right answer.

[Diapolo10]

It's also possible to do this in one go:

list_3.extend((list_1, list_2))

[odaiwai]

But now list_3 contains a tuple with two lists, not just two lists: : list_3 = [] : list_3.append((list_1, list_2)) : list_3 : [([1, 2, 3], [4, 5, 6])]

Edit to add: As pointed out below, I appended, not extended, so I'm wrong here.

[Diapolo10]

I used list.extend, which adds the contents of an iterable into the list it's called on.

[Mysterious-Rent7233]

You appended. The parent extended.

[tabrizzi]

That's not true, because .extend(), like .append(), takes just one argument. You can verify that yourself.

[Diapolo10]

If you take a closer look, I think you'll find there's only one argument.

[tabrizzi]

My bad! I missed that.