Can I append a list to a list of lists?

Question

I have a list of lists which contain different values and different lengths.

I want my code to iterate the "big list", and if an "item-list" (a sub-list in the big list) follows a condition (for example, len(list[i] > 1), I want to add this "item-list" to a new big list, so at the end, I will get a new list of lists (which all follow the condition).

The append() methoddoesn't work when I want to append a whole list.
Do you have any suggestion, how should I do it?

We are not very good at making sense of plain text questions. Do show some code and expected output — Moses Koledoye, Oct 04 '16 at 09:31
Why wouldn't append work? You can always add an item to an existing list, even if it is a list. — Jacob Vlijm, Oct 04 '16 at 09:31

score 0 · Accepted Answer · answered Oct 04 '16 at 09:32

0

The way to do it would be

new_big_list = [x for x in big_list if condition(x)]

but the loop with .append() should work if you start with an empty list

answered Oct 04 '16 at 09:32

JMat

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Can I append a list to a list of lists?

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